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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2020	Aug. 03, 2020
Document Information [Line Items]
Entity Registrant Name	REGENCY CENTERS CORPORATION
Entity Central Index Key	0000910606
Document Type	10-Q
Document Period End Date	Jun. 30, 2020
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Trading Symbol	REG
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		169,667,456
Entity File Number	1-12298
Entity Tax Identification Number	59-3191743
Entity Address, Address Line One	One Independent Drive
Entity Address, Address Line Two	Suite 114
Entity Address, City or Town	Jacksonville
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	32202
City Area Code	904
Local Phone Number	598-7000
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	FL
Partnership Interest [Member]
Document Information [Line Items]
Entity Registrant Name	REGENCY CENTERS, L.P.
Entity Central Index Key	0001066247
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Filer Category	Accelerated Filer
Entity File Number	0-24763
Entity Tax Identification Number	59-3429602
Entity Address, Address Line One	One Independent Drive
Entity Address, Address Line Two	Suite 114
Entity Address, City or Town	Jacksonville
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	32202
City Area Code	904
Local Phone Number	598-7000
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Real Estate Investment Property, at Cost [Abstract]
Real estate assets, at cost	$ 11,165,567	$ 11,095,294
Less: accumulated depreciation	1,893,250	1,766,162
Real estate assets, net	9,272,317	9,329,132
Investments in real estate partnerships	474,285	469,522
Properties held for sale	27,812	45,565
Cash, cash equivalents, and restricted cash, including $3,933 and $2,542 of restricted cash at June 30, 2020 and December 31, 2019, respectively	587,358	115,562
Tenant and other receivables	186,232	169,337
Deferred leasing costs, less accumulated amortization of $112,589 and $108,381 at June 30, 2020 and December 31, 2019, respectively	73,340	76,798
Acquired lease intangible assets, less accumulated amortization of $276,169 and $259,310 at June 30, 2020 and December 31, 2019, respectively	215,376	242,822
Right of use assets, net	289,739	292,786
Other assets	259,850	390,729
Total assets	11,386,309	11,132,253
Less: accumulated depreciation	1,893,250	1,766,162
Real estate assets, net	9,272,317	9,329,132
Investments in real estate partnerships	474,285	469,522
Properties held for sale	27,812	45,565
Liabilities:
Notes payable	4,028,767	3,435,161
Unsecured credit facilities	264,531	484,383
Accounts payable and other liabilities	223,990	213,705
Acquired lease intangible liabilities, less accumulated amortization of $138,335 and $131,676 at June 30, 2020 and December 31, 2019, respectively	400,533	427,260
Lease liabilities	221,035	222,918
Tenants’ security, escrow deposits and prepaid rent	50,251	58,865
Total liabilities	5,189,107	4,842,292
Commitments and contingencies		0
Equity/Capital:
Common stock, $0.01 par value per share, 220,000,000 shares authorized; 169,664,850 and 167,571,218 shares issued at June 30, 2020 and December 31, 2019, respectively	1,697	1,676
Treasury stock at cost, 466,469 and 440,574 shares held at June 30, 2020 and December 31, 2019, respectively	(24,597)	(23,199)
Additional paid-in-capital	7,785,095	7,654,930
Accumulated other comprehensive loss	(25,135)	(11,997)
Distributions in excess of net income	(1,615,077)	(1,408,062)
Total stockholders’ equity	6,121,983	6,213,348
Exchangeable operating partnership units, aggregate redemption value of 35,108 and 47,092 at June 30, 2020 and December 31, 2019, respectively	36,376	36,100
Limited partners’ interests in consolidated partnerships	38,843	40,513
Total noncontrolling interests	75,219	76,613
Total equity	6,197,202	6,289,961
Total equity	6,197,202	6,289,961
Total liabilities and equity	11,386,309	11,132,253
Partnership Interest [Member]
Real Estate Investment Property, at Cost [Abstract]
Real estate assets, at cost	11,165,567	11,095,294
Less: accumulated depreciation	1,893,250	1,766,162
Real estate assets, net	9,272,317	9,329,132
Investments in real estate partnerships	474,285	469,522
Properties held for sale	27,812	45,565
Cash, cash equivalents, and restricted cash, including $3,933 and $2,542 of restricted cash at June 30, 2020 and December 31, 2019, respectively	587,358	115,562
Tenant and other receivables	186,232	169,337
Deferred leasing costs, less accumulated amortization of $112,589 and $108,381 at June 30, 2020 and December 31, 2019, respectively	73,340	76,798
Acquired lease intangible assets, less accumulated amortization of $276,169 and $259,310 at June 30, 2020 and December 31, 2019, respectively	215,376	242,822
Right of use assets, net	289,739	292,786
Other assets	259,850	390,729
Total assets	11,386,309	11,132,253
Less: accumulated depreciation	1,893,250	1,766,162
Real estate assets, net	9,272,317	9,329,132
Investments in real estate partnerships	474,285	469,522
Properties held for sale	27,812	45,565
Liabilities:
Notes payable	4,028,767	3,435,161
Unsecured credit facilities	264,531	484,383
Accounts payable and other liabilities	223,990	213,705
Acquired lease intangible liabilities, less accumulated amortization of $138,335 and $131,676 at June 30, 2020 and December 31, 2019, respectively	400,533	427,260
Lease liabilities	221,035	222,918
Tenants’ security, escrow deposits and prepaid rent	50,251	58,865
Total liabilities	5,189,107	4,842,292
Commitments and contingencies	0	0
Equity/Capital:
General partner; 169,620,627 and 167,571,218 units outstanding at June 30, 2020 and December 31, 2019, respectively	6,147,118	6,225,345
Limited partners; 765,046 and 746,433 units outstanding at June 30, 2020 and December 31, 2019, respectively	36,376	36,100
Accumulated other comprehensive loss	(25,135)	(11,997)
Total partners’ capital	6,158,359	6,249,448
Limited partners’ interests in consolidated partnerships	38,843	40,513
Total capital	6,197,202	6,289,961
Total capital	6,197,202	6,289,961
Total liabilities and equity	$ 11,386,309	$ 11,132,253

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Lease income	$ 222,552	$ 266,236	$ 497,089	$ 543,539
Other property income	2,435	2,194	4,740	4,176
Management, transaction, and other fees	6,126	7,442	12,942	14,415
Total revenues	231,113	275,872	514,771	562,130
Operating expenses:
Depreciation and amortization	85,058	93,589	174,353	190,783
Operating and maintenance	40,032	42,759	82,401	83,397
General and administrative	21,202	18,717	34,907	40,017
Real estate taxes	36,793	33,506	72,680	67,661
Other operating expenses	2,480	1,533	3,817	2,667
Total operating expenses	185,565	190,104	368,158	384,525
Other expense (income):
Interest expense, net	40,375	37,173	77,811	74,925
Goodwill impairment	0		132,128	0
Provision for impairment of real estate, net of tax	230	10,441	1,014	12,113
Gain on sale of real estate, net of tax	(7,448)	(442)	(45,453)	(16,932)
Early extinguishment of debt			0	10,591
Net investment (income) loss	(4,359)	(966)	564	(3,320)
Total other expense (income)	28,798	46,206	166,064	77,377
Income (loss) from operations before equity in income of investments in real estate partnerships	16,750	39,562	(19,451)	100,228
Equity in income of investments in real estate partnerships	2,824	13,128	14,242	43,955
Net income (loss)	19,574	52,690	(5,209)	144,183
Noncontrolling interests:
Exchangeable operating partnership units	(87)	(109)	28	(299)
Limited partners’ interests in consolidated partnerships	(441)	(853)	(1,105)	(1,710)
Income attributable to noncontrolling interests	(528)	(962)	(1,077)	(2,009)
Net income (loss) attributable to common stockholders	$ 19,046	$ 51,728	$ (6,286)	$ 142,174
Income (loss) per common share - basic	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Income (loss) per common share - diluted	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Partnership Interest [Member]
Revenues:
Lease income	$ 222,552	$ 266,236	$ 497,089	$ 543,539
Other property income	2,435	2,194	4,740	4,176
Management, transaction, and other fees	6,126	7,442	12,942	14,415
Total revenues	231,113	275,872	514,771	562,130
Operating expenses:
Depreciation and amortization	85,058	93,589	174,353	190,783
Operating and maintenance	40,032	42,759	82,401	83,397
General and administrative	21,202	18,717	34,907	40,017
Real estate taxes	36,793	33,506	72,680	67,661
Other operating expenses	2,480	1,533	3,817	2,667
Total operating expenses	185,565	190,104	368,158	384,525
Other expense (income):
Interest expense, net	40,375	37,173	77,811	74,925
Goodwill impairment			132,128	0
Provision for impairment of real estate, net of tax	230	10,441	1,014	12,113
Gain on sale of real estate, net of tax	(7,448)	(442)	(45,453)	(16,932)
Early extinguishment of debt			0	10,591
Net investment (income) loss	(4,359)	(966)	564	(3,320)
Total other expense (income)	28,798	46,206	166,064	77,377
Income (loss) from operations before equity in income of investments in real estate partnerships	16,750	39,562	(19,451)	100,228
Equity in income of investments in real estate partnerships	2,824	13,128	14,242	43,955
Net income (loss)	19,574	52,690	(5,209)	144,183
Noncontrolling interests:
Limited partners’ interests in consolidated partnerships	(441)	(853)	(1,105)	(1,710)
Income attributable to noncontrolling interests	$ (441)	$ (853)	$ (1,105)	$ (1,710)
Income (loss) per common unit - basic	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Net income (loss) attributable to common unit holders	$ 19,133	$ 51,837	$ (6,314)	$ 142,473
Income (loss) per common unit - diluted	$ 0.11	$ 0.31	$ (0.04)	$ 0.85

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income (loss)	$ 19,574	$ 52,690	$ (5,209)	$ 144,183
Other comprehensive income (loss):
Effective portion of change in fair value of derivative instruments	(2,442)	(9,227)	(18,521)	(14,716)
Reclassification adjustment of derivative instruments included in net income (loss)	2,484	584	3,909	408
Unrealized gain on available-for-sale debt securities	311	123	326	260
Other comprehensive income (loss)	353	(8,520)	(14,286)	(14,048)
Comprehensive income (loss)	19,927	44,170	(19,495)	130,135
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	528	962	1,077	2,009
Other comprehensive loss attributable to noncontrolling interests	(43)	(529)	(1,148)	(889)
Comprehensive income (loss) attributable to noncontrolling interests	485	433	(71)	1,120
Comprehensive income (loss) attributable to the Company	19,442	43,737	(19,424)	129,015
Partnership Interest [Member]
Net income (loss)	19,574	52,690	(5,209)	144,183
Other comprehensive income (loss):
Effective portion of change in fair value of derivative instruments	(2,442)	(9,227)	(18,521)	(14,716)
Reclassification adjustment of derivative instruments included in net income (loss)	2,484	584	3,909	408
Unrealized gain on available-for-sale debt securities	311	123	326	260
Other comprehensive income (loss)	353	(8,520)	(14,286)	(14,048)
Comprehensive income (loss)	19,927	44,170	(19,495)	130,135
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	441	853	1,105	1,710
Other comprehensive loss attributable to noncontrolling interests	(44)	(512)	(1,088)	(861)
Comprehensive income (loss) attributable to noncontrolling interests	397	341	17	849
Comprehensive income (loss) attributable to the Company	$ 19,530	$ 43,829	$ (19,512)	$ 129,286

Consolidated Statement of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Distributions in Excess of Net Income [Member]	Total Stockholders' Equity [Member]	Noncontrolling Interest Exchangeable Operating Partnership Units [Member]	Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2018	$ 6,450,168	$ 1,679	$ (19,834)	$ 7,672,517	$ (927)	$ (1,255,465)	$ 6,397,970	$ 10,666	$ 41,532	$ 52,198
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	144,183					142,174	142,174	299	1,710	2,009
Other comprehensive income (loss):
Other comprehensive loss before reclassification	(14,456)				(13,614)		(13,614)	(29)	(813)	(842)
Amounts reclassified from accumulated other comprehensive loss	408				455		455	1	(48)	(47)
Deferred compensation plan, net	0		(2,702)	2,702
Restricted stock issued, net of amortization	7,904	3		7,901			7,904
Common stock redeemed for taxes withheld for stock based compensation, net	(5,957)			(5,957)			(5,957)
Common stock repurchased and retired	(32,778)	(6)		(32,772)			(32,778)
Common stock issued under dividend reinvestment plan	740			740			740
Contributions from partners	1,896								1,896	1,896
Distributions to partners	(2,864)								(2,864)	(2,864)
Cash dividends declared - common stock/unit	(196,396)					(195,987)	(195,987)	(409)		(409)
Reallocation of limited partner's interest	0			(66)			(66)		66	66
Ending Balance at Jun. 30, 2019	6,352,848	1,676	(22,536)	7,645,065	(14,086)	(1,309,278)	6,300,841	10,528	41,479	52,007
Beginning balance at Mar. 31, 2019	6,402,773	1,675	(21,226)	7,639,353	(6,096)	(1,263,011)	6,350,695	10,641	41,437	52,078
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	52,690					51,728	51,728	109	853	962
Other comprehensive income (loss):
Other comprehensive loss before reclassification	(9,104)				(8,597)		(8,597)	(19)	(488)	(507)
Amounts reclassified from accumulated other comprehensive loss	584				607		607	2	(25)	(23)
Deferred compensation plan, net	0		(1,310)	1,310
Restricted stock issued, net of amortization	3,952	1		3,951			3,952
Common stock issued for stock based compensation, net of common stock redeemed for taxes withheld	0
Common stock redeemed for taxes withheld for stock based compensation, net	94			94			94
Common stock repurchased and retired	0
Common stock issued under dividend reinvestment plan	357			357			357
Contributions from partners	1,001								1,001	1,001
Distributions to partners	(1,299)								(1,299)	(1,299)
Cash dividends declared - common stock/unit	(98,200)					(97,995)	(97,995)	(205)		(205)
Ending Balance at Jun. 30, 2019	6,352,848	1,676	(22,536)	7,645,065	(14,086)	(1,309,278)	6,300,841	10,528	41,479	52,007
Beginning balance at Dec. 31, 2019	6,289,961	1,676	(23,199)	7,654,930	(11,997)	(1,408,062)	6,213,348	36,100	40,513	76,613
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(5,209)					(6,286)	(6,286)	(28)	1,105	1,077
Other comprehensive income (loss):
Other comprehensive loss before reclassification	(18,195)				(16,954)		(16,954)	(77)	(1,164)	(1,241)
Amounts reclassified from accumulated other comprehensive loss	3,909				3,816		3,816	17	76	93
Deferred compensation plan, net	0		(1,398)	1,398
Restricted stock issued, net of amortization	7,592	2		7,590			7,592
Common stock redeemed for taxes withheld for stock based compensation, net	(5,175)			(5,175)			(5,175)
Common stock issued under dividend reinvestment plan	756			756			756
Common stock issued, net of issuance costs	125,615	19		125,596			125,615
Contributions from partners	131								131	131
Issuance of exchangeable operating partnership units	1,275							1,275		1,275
Distributions to partners	(1,818)								(1,818)	(1,818)
Cash dividends declared - common stock/unit	(201,640)					(200,729)	(200,729)	(911)		(911)
Ending Balance at Jun. 30, 2020	6,197,202	1,697	(24,597)	7,785,095	(25,135)	(1,615,077)	6,121,983	36,376	38,843	75,219
Beginning balance at Mar. 31, 2020	6,275,235	1,696	(23,897)	7,780,336	(25,531)	(1,533,182)	6,199,422	36,744	39,069	75,813
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	19,574					19,046	19,046	87	441	528
Other comprehensive income (loss):
Other comprehensive loss before reclassification	(2,131)				(2,016)		(2,016)	(10)	(105)	(115)
Amounts reclassified from accumulated other comprehensive loss	2,484				2,412		2,412	11	61	72
Deferred compensation plan, net	0		(700)	700
Restricted stock issued, net of amortization	3,828	1		3,827			3,828
Common stock issued for stock based compensation, net of common stock redeemed for taxes withheld	13			13			13
Common stock issued under dividend reinvestment plan	377			377			377
Common stock issued, net of issuance costs	(158)			(158)			(158)
Contributions from partners	31								31	31
Distributions to partners	(654)								(654)	(654)
Cash dividends declared - common stock/unit	(101,397)					(100,941)	(100,941)	(456)		(456)
Ending Balance at Jun. 30, 2020	$ 6,197,202	$ 1,697	$ (24,597)	$ 7,785,095	$ (25,135)	$ (1,615,077)	$ 6,121,983	$ 36,376	$ 38,843	$ 75,219

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 19,574	$ 52,690	$ (5,209)	$ 144,183
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization			174,353	190,783
Amortization of deferred loan costs and debt premiums			5,237	5,911
(Accretion) and amortization of above and below market lease intangibles, net			(22,456)	(19,496)
Stock-based compensation, net of capitalization			7,217	6,989
Equity in income of investments in real estate partnerships	(2,824)	(13,128)	(14,242)	(43,955)
Gain on sale of real estate, net of tax			(45,453)	(16,932)
Provision for impairment of real estate, net of tax	230	10,441	1,014	12,113
Goodwill impairment	0		132,128	0
Early extinguishment of debt			0	10,591
Distribution of earnings from investments in real estate partnerships			18,655	25,659
Settlement of derivative instruments			0	(5,719)
Deferred compensation expense			(441)	3,297
Realized and unrealized gain on investments			599	(3,299)
Changes in assets and liabilities:
Tenant and other receivables			(24,111)	6,975
Deferred leasing costs			(3,732)	(4,782)
Other assets			(8,499)	(7,628)
Accounts payable and other liabilities			10,982	(3,292)
Tenants’ security, escrow deposits and prepaid rent			(8,623)	(12,075)
Net cash provided by operating activities			217,419	289,323
Cash flows from investing activities:
Acquisition of operating real estate			(16,867)	(19,302)
Advance deposits refunded (paid) on acquisition of operating real estate			100	(11,000)
Real estate development and capital improvements			(107,852)	(80,032)
Proceeds from sale of real estate investments			115,614	83,460
Issuance of notes receivable			(440)	0
Investments in real estate partnerships			(42,088)	(32,970)
Return of capital from investments in real estate partnerships			23,235	46,740
Dividends on investment securities			140	264
Acquisition of investment securities			(7,062)	(11,498)
Proceeds from sale of investment securities			7,094	10,828
Net cash used in investing activities			(28,126)	(13,510)
Cash flows from financing activities:
Net proceeds from common stock issuance			125,616	0
Repurchase of common shares in conjunction with equity award plans			(5,405)	(6,148)
Common shares repurchased through share repurchase program			0	(32,778)
Proceeds from sale of treasury stock			62	9
Distributions to limited partners in consolidated partnerships, net			(1,644)	(968)
Distributions to exchangeable operating partnership unit holders			(910)	(409)
Dividends paid to common stockholders			(199,971)	(195,246)
Repayment of fixed rate unsecured notes			0	(250,000)
Proceeds from issuance of fixed rate unsecured notes, net			598,830	298,983
Proceeds from unsecured credit facilities			610,000	185,000
Repayment of unsecured credit facilities			(830,000)	(210,000)
Repayment of notes payable			(3,891)	(53,530)
Scheduled principal payments			(5,128)	(4,562)
Payment of loan costs			(5,056)	(3,343)
Early redemption costs			0	(10,647)
Net cash provided by (used in) financing activities			282,503	(283,639)
Net increase (decrease) in cash and cash equivalents and restricted cash			471,796	(7,826)
Cash and cash equivalents and restricted cash at beginning of the period			115,562	45,190	$ 45,190
Cash and cash equivalents and restricted cash at end of the period	587,358	37,364	587,358	37,364	115,562
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $2,449 and $1,996 in 2020 and 2019, respectively)			72,013	68,351
Cash paid for income taxes, net of refunds			576	459
Supplemental disclosure of non-cash transactions:
Acquisition of real estate previously held within investments in real estate partnerships			5,986
Mortgage loan assumed with the acquisition of real estate			16,359
Exchangeable operating partnership units issued for acquisition of real estate			1,275
Change in accrued capital expenditures			2,965	9,149
Common stock issued under dividend reinvestment plan	377	357	756	740
Stock-based compensation capitalized			604	1,105
Contributions from limited partners in consolidated partnerships, net				66
Common stock issued for dividend reinvestment in trust			540	479
Contribution of stock awards into trust			1,352	2,397
Distribution of stock held in trust			441	167
Change in fair value of securities			326	260
Partnership Interest [Member]
Cash flows from operating activities:
Net income (loss)	19,574	52,690	(5,209)	144,183
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization			174,353	190,783
Amortization of deferred loan costs and debt premiums			5,237	5,911
(Accretion) and amortization of above and below market lease intangibles, net			(22,456)	(19,496)
Stock-based compensation, net of capitalization			7,217	6,989
Equity in income of investments in real estate partnerships	(2,824)	(13,128)	(14,242)	(43,955)
Gain on sale of real estate, net of tax			(45,453)	(16,932)
Provision for impairment of real estate, net of tax	230	10,441	1,014	12,113
Goodwill impairment			132,128	0
Early extinguishment of debt			0	10,591
Distribution of earnings from investments in real estate partnerships			18,655	25,659
Settlement of derivative instruments			0	(5,719)
Deferred compensation expense			(441)	3,297
Realized and unrealized gain on investments			599	(3,299)
Changes in assets and liabilities:
Tenant and other receivables			(24,111)	6,975
Deferred leasing costs			(3,732)	(4,782)
Other assets			(8,499)	(7,628)
Accounts payable and other liabilities			10,982	(3,292)
Tenants’ security, escrow deposits and prepaid rent			(8,623)	(12,075)
Net cash provided by operating activities			217,419	289,323
Cash flows from investing activities:
Acquisition of operating real estate			(16,867)	(19,302)
Advance deposits refunded (paid) on acquisition of operating real estate			100	(11,000)
Real estate development and capital improvements			(107,852)	(80,032)
Proceeds from sale of real estate investments			115,614	83,460
Issuance of notes receivable			(440)	0
Investments in real estate partnerships			(42,088)	(32,970)
Return of capital from investments in real estate partnerships			23,235	46,740
Dividends on investment securities			140	264
Acquisition of investment securities			(7,062)	(11,498)
Proceeds from sale of investment securities			7,094	10,828
Net cash used in investing activities			(28,126)	(13,510)
Cash flows from financing activities:
Net proceeds from common stock issuance			125,616	0
Repurchase of common shares in conjunction with equity award plans			(5,405)	(6,148)
Common shares repurchased through share repurchase program			0	(32,778)
Proceeds from sale of treasury stock			62	9
Distributions to limited partners in consolidated partnerships, net			(1,644)	(968)
Dividends paid to common stockholders			(200,881)	(195,655)
Repayment of fixed rate unsecured notes			0	(250,000)
Proceeds from issuance of fixed rate unsecured notes, net			598,830	298,983
Proceeds from unsecured credit facilities			610,000	185,000
Repayment of unsecured credit facilities			(830,000)	(210,000)
Repayment of notes payable			(3,891)	(53,530)
Scheduled principal payments			(5,128)	(4,562)
Payment of loan costs			(5,056)	(3,343)
Early redemption costs			0	(10,647)
Net cash provided by (used in) financing activities			282,503	(283,639)
Net increase (decrease) in cash and cash equivalents and restricted cash			471,796	(7,826)
Cash and cash equivalents and restricted cash at beginning of the period			115,562	45,190	45,190
Cash and cash equivalents and restricted cash at end of the period	$ 587,358	$ 37,364	587,358	37,364	$ 115,562
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $2,449 and $1,996 in 2020 and 2019, respectively)			72,013	68,351
Cash paid for income taxes, net of refunds			576	459
Supplemental disclosure of non-cash transactions:
Acquisition of real estate previously held within investments in real estate partnerships			5,986
Mortgage loan assumed with the acquisition of real estate			16,359
Exchangeable operating partnership units issued for acquisition of real estate			1,275
Change in accrued capital expenditures			2,965	9,149
Common stock issued under dividend reinvestment plan			756	740
Stock-based compensation capitalized			604	1,105
Contributions from limited partners in consolidated partnerships, net				66
Common stock issued for dividend reinvestment in trust			540	479
Contribution of stock awards into trust			1,352	2,397
Distribution of stock held in trust			441	167
Change in fair value of securities			$ 326	$ 260

Consolidated Statement of Changes in Partner Capital Statement - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income (loss)	$ 19,574	$ 52,690	$ (5,209)	$ 144,183
Other comprehensive loss
Amounts reclassified from accumulated other comprehensive loss	2,484	584	3,909	408
Contributions from partners	31	1,001	131	1,896
Issuance of exchangeable operating partnership units			1,275
Distributions to partners	(654)	(1,299)	(1,818)	(2,864)
Reallocation of limited partner's interest				0
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	3,828	3,952	7,592	7,904
Partners Capital Total [Member]
Net income (loss)	19,046	51,728	(6,286)	142,174
Other comprehensive loss
Amounts reclassified from accumulated other comprehensive loss	2,412	607	3,816	455
Reallocation of limited partner's interest				66
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	3,828	3,952	7,592	7,904
Partnership Interest [Member]
Beginning Balance	6,275,235	6,402,773	6,289,961	6,450,168
Net income (loss)	19,574	52,690	(5,209)	144,183
Other comprehensive loss
Other comprehensive loss before reclassification	(2,131)	(9,104)	(18,195)	(14,456)
Amounts reclassified from accumulated other comprehensive loss	2,484	584	3,909	408
Contributions from partners	31	1,001	131	1,896
Issuance of exchangeable operating partnership units			1,275
Distributions to partners	(102,051)	(99,499)	(203,458)	(199,260)
Reallocation of limited partner's interest		0		0
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	3,828	3,952	7,592	7,904
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company				(32,778)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	(158)		125,615
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances	390	451	(4,419)	(5,217)
Ending Balance	6,197,202	6,352,848	6,197,202	6,352,848
Partnership Interest [Member] \| Partners Capital Total [Member]
Beginning Balance	6,236,166	6,361,336	6,249,448	6,408,636
Net income (loss)	19,133	51,837	(6,314)	142,473
Other comprehensive loss
Other comprehensive loss before reclassification	(2,026)	(8,616)	(17,031)	(13,643)
Amounts reclassified from accumulated other comprehensive loss	2,423	609	3,833	456
Contributions from partners	0	0	0	0
Issuance of exchangeable operating partnership units			1,275
Distributions to partners	(101,397)	(98,200)	(201,640)	(196,396)
Reallocation of limited partner's interest		0		(66)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	3,828	3,952	7,592	7,904
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company				(32,778)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	(158)		125,615
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances	390	451	(4,419)	(5,217)
Ending Balance	6,158,359	6,311,369	6,158,359	6,311,369
Partnership Interest [Member] \| AOCI Attributable to Parent [Member]
Beginning Balance	(25,531)	(6,096)	(11,997)	(927)
Net income (loss)	0	0	0	0
Other comprehensive loss
Other comprehensive loss before reclassification	(2,016)	(8,597)	(16,954)	(13,614)
Amounts reclassified from accumulated other comprehensive loss	2,412	607	3,816	455
Contributions from partners	0	0	0	0
Issuance of exchangeable operating partnership units			0
Distributions to partners	0	0	0	0
Reallocation of limited partner's interest		0		0
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	0	0	0	0
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company				0
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	0		0
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances	0	0	0	0
Ending Balance	(25,135)	(14,086)	(25,135)	(14,086)
Partnership Interest [Member] \| Noncontrolling Interest [Member]
Beginning Balance	39,069	41,437	40,513	41,532
Net income (loss)	441	853	1,105	1,710
Other comprehensive loss
Other comprehensive loss before reclassification	(105)	(488)	(1,164)	(813)
Amounts reclassified from accumulated other comprehensive loss	61	(25)	76	(48)
Contributions from partners	31	1,001	131	1,896
Issuance of exchangeable operating partnership units			0
Distributions to partners	(654)	(1,299)	(1,818)	(2,864)
Reallocation of limited partner's interest		0		66
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	0	0	0	0
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company				0
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	0		0
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances	0	0	0	0
Ending Balance	38,843	41,479	38,843	41,479
Partnership Interest [Member] \| General Partner [Member]
Beginning Balance	6,224,953	6,356,791	6,225,345	6,398,897
Net income (loss)	19,046	51,728	(6,286)	142,174
Other comprehensive loss
Other comprehensive loss before reclassification	0	0	0	0
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Contributions from partners	0	0	0	0
Issuance of exchangeable operating partnership units			0
Distributions to partners	(100,941)	(97,995)	(200,729)	(195,987)
Reallocation of limited partner's interest		0		(66)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	3,828	3,952	7,592	7,904
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company				(32,778)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	(158)		125,615
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances	390	451	(4,419)	(5,217)
Ending Balance	6,147,118	6,314,927	6,147,118	6,314,927
Partnership Interest [Member] \| Limited Partner [Member]
Beginning Balance	36,744	10,641	36,100	10,666
Net income (loss)	87	109	(28)	299
Other comprehensive loss
Other comprehensive loss before reclassification	(10)	(19)	(77)	(29)
Amounts reclassified from accumulated other comprehensive loss	11	2	17	1
Contributions from partners	0	0	0	0
Issuance of exchangeable operating partnership units			1,275
Distributions to partners	(456)	(205)	(911)	(409)
Reallocation of limited partner's interest		0		0
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	0	0	0	0
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company				0
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	0		0
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances	0	0	0	0
Ending Balance	$ 36,376	$ 10,528	$ 36,376	$ 10,528

Organization and Significant Accounting Policies

6 Months Ended

Jun. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Organization and Significant Accounting Policies

1.	Organization and Significant Accounting Policies

General

Regency Centers Corporation (the “Parent Company”) began its operations as a Real Estate Investment Trust (“REIT”) in 1993 and is the general partner of Regency Centers, L.P. (the “Operating Partnership”). The Parent Company primarily engages in the ownership, management, leasing, acquisition, and development and redevelopment of shopping centers through the Operating Partnership, and has no other assets other than through its investment in the Operating Partnership, and its only liabilities are $500 million of unsecured public and private placement notes, which are co-issued and guaranteed by the Operating Partnership. The Parent Company guarantees all of the unsecured debt of the Operating Partnership.

As of June 30, 2020, the Parent Company, the Operating Partnership, and their controlled subsidiaries on a consolidated basis owned 300 properties and held partial interests in an additional 115 properties through unconsolidated Investments in real estate partnerships (also referred to as “joint ventures” or “investment partnerships”).

COVID-19 Pandemic

On March 11, 2020, the novel coronavirus disease (“COVID-19”) was declared a pandemic (“COVID-19 pandemic”) by the World Health Organization as the disease spread throughout the world. During March 2020, COVID-19 began to appear in and spread throughout the United States resulting in federal, state and local government agencies issuing regulatory orders enforcing social distancing and limiting group gatherings in order to further prevent the spread. While restrictions vary by state, generally, businesses deemed essential to the public were able to operate while non-essential businesses were not. Grocer tenants that anchor over 80% of our operating centers are considered essential businesses and the majority have remained open and operational to serve the residents of their communities. Many restaurants are also considered essential, although the social distancing and group gathering limitations can significantly limit, or in some cases, prevent dine-in activity. Non-restaurant retailers have been, likewise, potentially restricted by limitations, especially to the extent they were not determined to be essential businesses. As a result, many retailers have had to evaluate alternate means of providing their goods and services to the public or, in the case of non-essential tenants, to close as a result of this pandemic.

During the three months ended June 30, 2020, state and local governments began to ease restrictions, allowing many retailers to reopen or increase occupancy of their stores from previously imposed limits. Although many retailers have reported initially strong sales results upon reopening, the risk of diminished sales and future closures may occur as the virus remains active and continues to spread which may negatively impact customers’ willingness to shop and dine at retail centers. In many areas of the country, increased numbers of cases have been reported resulting in some states and municipalities re-imposing previously-lifted restrictions in an attempt to control the further spread of the virus, and may introduce further restrictions in the future which would have an unfavorable impact on the economy and our tenants. In addition, government support programs designed to assist businesses, including certain of our tenants, may not be continued or renewed. To the extent such tenants used funds from these programs to pay rent, a discontinuance or non-renewal of such programs could impact the ability of such tenants to pay rent, which could adversely impact us. If tenants are unable to sustain their businesses, the Company may lose existing tenants which will result in reduced lease income and occupancy. Further, suitable replacement tenants may also be difficult to identify for an extended period and the terms of leases with those replacement tenants may not be as favorable as the terms of existing leases.

Since the COVID-19 pandemic and resulting restrictions began, the Company has been closely monitoring its cash collections which have significantly declined, most notably from tenants whose businesses are classified as non-essential. Approximately 72% of base rent billed for the three months ended June 30, 2020 has been collected through July 31, 2020. The COVID-19 pandemic has also resulted in certain tenants requesting concessions from rent obligations, including deferrals, abatements and requests to negotiate future rents, while some tenants have been unable to reopen or have not honored the terms of their existing lease agreements. The Company has entered into over 600 mutually acceptable agreements, representing $16.4 million of pro-rata base rent or 1.8% of annual base rent, with tenants within our consolidated real estate portfolio and our unconsolidated real estate investment partnerships, to enable them to defer a portion of their rental payments and repay them over future periods. The Company expects to continue to work with other tenants, which may result in further rent concessions as determined to be necessary and appropriate. While the deferred rent is currently expected to be paid by the tenants in accordance with the terms of their agreements, due to the uncertainty surrounding the COVID-19 pandemic, there can be no assurances that all such deferred rent will ultimately be paid, or paid within the timeframes negotiated and agreed upon. See note 7, Leases, for further information.

The Company has long had a business continuity and disaster recovery plan which has been successfully implemented in the past. This experience enabled the Company to continue operating productively during the COVID-19 pandemic while its employees work safely from home, as roles permit, during the early stages of the COVID-19 pandemic. The Company has maintained, and expect to continue to maintain, its financial reporting systems as well as its internal controls over financial reporting and

disclosure controls and procedures. The Company has since developed and executed its office reopening plan allowing employees, in the current stage, the option to work from home or the office. The Company has implemented CDC-approved protocols and developed detailed plans to prioritize the well-being of its employees, and encourages its tenants to similarly follow all rules and guidelines. All employees are required to complete training before returning to the office and are subject to a daily health check in order to work in the office. In order to maximize social distancing, the Company has implemented in-office split scheduling allowing for greater distance between employee work stations. The Company will continue to make necessary adjustments to its plans as facts and circumstances change and evolve.

The consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary to fairly state the results for the interim periods presented. These adjustments are considered to be of a normal recurring nature, except for the goodwill impairment, discussed in Note 4, resulting from the market and economic impacts of the COVID-19 pandemic.

Consolidation

The Company consolidates properties that are wholly-owned and properties where it owns less than 100%, but which it has control over the activities most important to the overall success of the partnership. Control is determined using an evaluation based on accounting standards related to the consolidation of Variable Interest Entities ("VIEs") and voting interest entities.

Ownership of the Operating Partnership

The Operating Partnership’s capital includes general and limited common Partnership Units. As of June 30, 2020, the Parent Company owned approximately 99.6% of the outstanding common Partnership Units of the Operating Partnership, with the remaining limited common Partnership Units held by third parties (“Exchangeable operating partnership units” or “EOP units”). Each EOP unit is exchangeable for cash or one share of common stock of the Parent Company, at the discretion of the Parent Company, and the unit holder cannot require redemption in cash or other assets. The Parent Company has evaluated the conditions as specified under Accounting Standards Codification (“ASC”) Topic 480, Distinguishing Liabilities from Equity as it relates to exchangeable operating partnership units outstanding and concluded that it has the right to satisfy the redemption requirements of the units by delivering unregistered common stock. Accordingly, the Parent Company classifies EOP units as permanent equity in the accompanying Consolidated Balance Sheets and Consolidated Statements of Equity and Comprehensive Income. The Parent Company serves as general partner of the Operating Partnership. The EOP unit holders have limited rights over the Operating Partnership such that they do not have the power to direct the activities of the Operating Partnership. As such, the Operating Partnership is considered a VIE, and the Parent Company, which consolidates it, is the primary beneficiary. The Parent Company’s only investment is the Operating Partnership. Net income and distributions of the Operating Partnership are allocable to the general and limited common Partnership Units in accordance with their ownership percentages.

Real Estate Partnerships

As of June 30, 2020, Regency had a partial ownership interest in 125 properties through partnerships, of which 10 are consolidated. Regency's partners include institutional investors and other real estate developers and/or operators (the “Partners” or “limited partners”). Regency has a variable interest in these entities through its equity interests, with Regency the primary beneficiary in certain of these real estate partnerships. As such, Regency consolidates the partnerships for which it is the primary beneficiary and reports the limited partners’ interests as Noncontrolling interests. For those partnerships which Regency is not the primary beneficiary and does not control, but has significant influence, Regency recognizes its investment in them using the equity method of accounting.

The assets of these partnerships are restricted to the use of the partnerships and cannot be used by general creditors of the Company. And similarly, the obligations of the partnerships can only be settled by the assets of these partnerships or additional contributions by the partners.

The major classes of assets, liabilities, and non-controlling equity interests held by the Company's consolidated VIEs, exclusive of the Operating Partnership, are as follows:

(in thousands)	June 30, 2020		December 31, 2019
Assets
Net real estate investments⁽¹⁾	$	130,889		325,464
Cash, cash equivalents and restricted cash⁽¹⁾		4,340		57,269
Liabilities
Notes payable		7,318		17,740
Equity
Limited partners’ interests in consolidated partnerships		30,277		30,655

⁽¹⁾

Included in the December 31, 2019, balances were real estate assets and cash held in Section 1031 like-kind exchanges, of which none remained at June 30, 2020.

Revenues and Other Receivables

Other property income includes incidental income from the properties and is generally recognized at the point in time that the performance obligation is met. All income from contracts with the Company's real estate partnerships is included within Management, transaction and other fees on the Consolidated Statements of Operations. The primary components of these revenue streams, the timing of satisfying the performance obligations, and amounts recognized are as follows:

		Three months ended June 30,				Six months ended June 30,
(in thousands)	Timing of satisfaction of performance obligations	2020		2019		2020		2019
Other property income	Point in time	$	2,435		2,194	$	4,740		4,176
Management, transaction and other fees:
Property management services	Over time		3,353		3,665		7,232		7,428
Asset management services	Over time		1,756		1,760		3,594		3,538
Leasing services	Point in time		529		705		1,239		1,463
Other transaction fees	Point in time		488		1,312		877		1,986
Total management, transaction, and other fees		$	6,126		7,442	$	12,942		14,415

The accounts receivable for management services, which are included within Tenant and other receivables in the accompanying Consolidated Balance Sheets, are $9.2 million and $11.6 million, as of June 30, 2020 and December 31, 2019, respectively.

Recent Accounting Pronouncements

The following table provides a brief description of recent accounting pronouncements and expected impact on our financial statements:


Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Recently adopted:

Accounting Standards Update (“ASU”) 2016-13, June 2016, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This ASU applies to how the Company evaluates impairments of any available-for-sale debt securities and any non-operating lease receivables, including lease receivables arising from leases classified as sales-type or direct finance leases.	January 2020	The Company has completed its evaluation and adoption of this standard, which resulted in changes in evaluating impairment of its available-for-sale debt securities. Declines in fair value below amortized cost resulting from credit related factors will be reflected in earnings, within Net investment income in the accompanying Consolidated Statements of Operations. Changes in value from market related factors continue to be recognized in Other comprehensive income (“OCI”). The Company’s investments in available-for-sale debt securities are invested in investment grade quality holdings or U.S. government backed securities, and are well diversified. During the six months ended June 30, 2020, the Company did not recognize any allowance for credit loss. Additionally, the Company’s non-operating lease receivables experienced no credit losses during the six months ended June 30, 2020, and the Company has no other financial instruments, such as lease receivables arising from sales-type or direct finance leases, subject to this ASU.

ASU 2018-19, November 2018, Codification Improvements to Topic 326, Financial Instruments - Credit Losses	This ASU clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases.	January 2020	The Company has completed its evaluation and adoption of this standard with no additional changes in its accounting for operating leases and related receivables.

ASU 2018-13, August 2018, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement	This ASU modifies the disclosure requirements for fair value measurements within the scope of Topic 820, Fair Value Measurements, including the removal and modification of certain existing disclosures, and the addition of new disclosures.	January 2020	The Company has completed its evaluation and adoption of this new standard. The Company does not have any assets or liabilities measured to fair value using Level 3 measurements at June 30, 2020.



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
ASU 2018-15, August 2018, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.	The amendments in this ASU align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The ASU provides further clarification of the appropriate presentation of capitalized costs, the period over which to recognize the expense, the presentation within the Statements of Operations and Statements of Cash Flows, and disclosure requirements.	January 2020	The Company has completed its evaluation and adoption of this standard. Qualifying implementation costs incurred in a cloud computing arrangement that is a service contract are no longer expensed as incurred but rather are deferred within Other assets and amortized to earnings, within General and administrative expense in the accompanying Consolidated Statements of Operations, over the term of the arrangement. Cash flows attributable to the service arrangements, including implementation thereof, are reflected as Operating cash flows within the Consolidated Statements of Cash Flows.

ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	In March 2020, the Financial Accounting Standards Board (“FASB”) issued ASU 2020-04, Reference Rate Reform (Topic 848). ASU 2020-04 contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives, and other contracts. The guidance in ASU 2020-04 is optional and may be elected over time as reference rate reform activities occur.	March 2020 through December 31, 2022	The Company has elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. As additional index changes in the market occur, the Company will evaluate the impact of the guidance and may apply other elections as applicable.

Not yet adopted:

ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740, Income Taxes, and also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. Notable changes of potential impact include income-based franchise taxes and interim period recognition of enacted changes in tax laws or rates.	January 2021	The Company is evaluating this update and does not expect it to have a material impact to its financial condition, results of operations, cash flows or related footnote disclosures.

Real Estate Investments

6 Months Ended

Jun. 30, 2020

Business Combinations [Abstract]

Real Estate Investments

2.	Real Estate Investments

The following tables detail consolidated shopping centers acquired or land acquired for development or redevelopment for the periods set forth below:

(in thousands)

Six months ended June 30, 2020

Date Purchased

Property Name

City/State

Property Type

Ownership

Purchase

Price

Debt

Assumed,

Net of

Premiums

Intangible

Assets

Intangible

Liabilities

1/1/20

Country Walk Plaza ⁽¹⁾

Miami, FL

Operating

100%

39,625

16,359

3,294

2,452

⁽¹⁾	^{The purchase price presented above reflects the purchase price for 100% of the property, of which the Company previously owned a 30% equity interest prior to acquiring the other partner’s interest and gaining control.}

(in thousands)		Six months ended June 30, 2019
Date Purchased	Property Name	City/State	Property Type	Ownership	Purchase Price		Debt Assumed, Net of Premiums		Intangible Assets		Intangible Liabilities
1/8/19	Pablo Plaza ⁽¹⁾	Jacksonville, FL	Operating	100%	$	600		—		—		—
2/8/19	Melrose Market	Seattle, WA	Operating	100%		15,515		—		941		358
6/18/19	The Field at Commonwealth Ph II ⁽²⁾	Chantilly, VA	Development	100%		4,083		—		—		—
6/21/19	Culver Public Market	Culver City, CA	Development	100%		1,279		—		—		—
6/28/19	6401 Roosevelt	Seattle, WA	Operating	100%		3,550		—		—		—
Total property acquisitions					$	25,027		—		941		358

⁽¹⁾

^{The Company purchased a 0.17 acre land parcel adjacent to the Company's existing operating Pablo Plaza for redevelopment.}

⁽²⁾

The Company purchased The Field at Commonwealth Ph II, which is land adjacent to an existing operating property, for future development.

Other Assets

6 Months Ended

Jun. 30, 2020

Other Assets [Abstract]

Other Assets

4.	Other Assets

The following table represents the components of Other assets in the accompanying Consolidated Balance Sheets as of the dates set forth below:

(in thousands)	June 30, 2020		December 31, 2019
Goodwill, net	$	174,830		307,434
Investments		49,898		50,354
Prepaid and other		24,948		18,169
Derivative assets		—		2,987
Furniture, fixtures, and equipment, net		6,568		7,098
Deferred financing costs, net		3,606		4,687
Total other assets	$	259,850		390,729

The following table presents the goodwill balances and activity during the year to date periods ended:

	June 30, 2020									December 31, 2019
(in thousands)	Goodwill			Accumulated Impairment Losses			Total			Goodwill			Accumulated Impairment Losses			Total
Beginning of year balance	$	310,388			(2,954	)		307,434			316,858			(2,715	)		314,143
Goodwill allocated to Provision for impairment		—			(132,179	)		(132,179	)		—			(2,954	)		(2,954	)
Goodwill allocated to Properties held for sale		(963	)		963			—			(2,472	)		—			(2,472	)
Goodwill associated with disposed reporting units:
Goodwill allocated to Provision for impairment		—			—			—			(1,779	)		1,779			—
Goodwill allocated to Gain on sale of real estate		(425	)		—			(425	)		(2,219	)		936			(1,283	)
End of period balance	$	309,000			(134,170	)		174,830			310,388			(2,954	)		307,434

As the Company identifies properties (“reporting units”) that no longer meet its investment criteria, it will evaluate the property for potential sale. A decision to sell a reporting unit results in the need to evaluate its goodwill for recoverability and may result in impairment. Additionally, other changes impacting a reporting unit may be considered a triggering event. If events occur that trigger an impairment evaluation at multiple reporting units, a goodwill impairment may be significant.

During the three months ended March 31, 2020, the Company recognized $132.2 million of Goodwill impairment. The market disruptions related to the significant economic impacts of the COVID-19 pandemic triggered evaluation of reporting unit fair values for goodwill impairment. The Company’s reporting units are at the individual property level. The carrying value of long-lived assets of the reporting units were first tested for recoverability with no resulting impairments. Next, the fair value of each reporting unit was compared to its carrying value, including goodwill. Of the 269 reporting units with goodwill, 87 of those were determined to have fair values lower than carrying value. As such, goodwill impairment losses totaling $132.2 million were recognized for the amount that the carrying amount of the reporting unit, including goodwill, exceeded its fair value, limited to the total amount of goodwill allocated to that reporting unit. Fair values of the reporting units were determined using a discounted cash flow approach, including current market cash flow assumptions for impacts to existing tenant contractual rent as well as prospective future rent and occupancy changes and related capital and operating expenditures. The cap rates and discount rates used in the analysis reflect management’s best estimate of market rates adjusted for the current environment. No additional Goodwill impairments were recognized during the three months ended June 30, 2020.

Notes Payable and Unsecured Credit Facilities

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Notes Payable and Unsecured Credit Facilities

5.	Notes Payable and Unsecured Credit Facilities

The Company’s outstanding debt, net of unamortized debt premium (discount) and debt issuance costs, consisted of the following:

(in thousands)	Weighted Average Contractual Rate	Weighted Average Effective Rate	June 30, 2020		December 31, 2019
Notes payable:
Fixed rate mortgage loans	4.4%	3.9%	$	341,063		342,020
Variable rate mortgage loans ⁽¹⁾	2.8%	2.9%		147,722		148,389
Fixed rate unsecured debt	3.8%	3.9%		3,539,982		2,944,752
Total notes payable				4,028,767		3,435,161
Unsecured credit facilities:
Line of Credit (the "Line") ⁽²⁾	1.2%	1.4%		-		220,000
Term loans	2.0%	2.1%		264,531		264,383
Total unsecured credit facilities				264,531		484,383
Total debt outstanding			$	4,293,298		3,919,544

⁽¹⁾

Includes six mortgages with interest rates that vary on LIBOR based formulas. Four of these variable rate loans have interest rate swaps in place to fix the interest rates. The effective fixed rates of the loans range from 2.5% to 4.1%.

⁽²⁾

Weighted average effective and contractual rate for the Line is calculated based on a fully drawn Line balance.

Significant financing activity during 2020 includes:

•

In order to enhance its financial liquidity and to provide financial flexibility to continue its business initiatives amid the evolving effects of the COVID-19 pandemic, in May 2020 the Company issued $600 million of 3.70% senior unsecured public notes, which priced at 99.805%, and mature in June 2030. A portion of the net proceeds were used to repay the outstanding balance on the Line and the remainder of the proceeds are held in cash and are expected to be used for general corporate purposes, including early repayment of a portion of outstanding debt.

•

On August 3, 2020, the Operating Partnership notified U.S. Bank National Association, as trustee, of its intent to redeem on September 2, 2020 the entire $300 million outstanding of 3.75% Notes due 2022. The redemption price will be determined in accordance with the applicable indenture and is expected to be approximately $325.1 million including accrued and unpaid interest through the proposed redemption date and a make-whole amount as defined in such indenture.

As of June 30, 2020, the Company has access to a remaining borrowing capacity on the Line of $1.2 billion, which matures in March 2022 and is subject to two additional six-month extensions at the Company’s election.

Scheduled principal payments and maturities on notes payable and unsecured credit facilities were as follows:

(in thousands)	June 30, 2020
Scheduled Principal Payments and Maturities by Year:	Scheduled Principal Payments		Mortgage Loan Maturities		Unsecured Maturities ⁽¹⁾			Total
2020 ⁽²⁾	$	6,088		27,000		—			33,088
2021		11,598		74,101		—			85,699
2022		11,797		5,848		565,000			582,645
2023		10,124		59,374		—			69,498
2024		5,301		90,744		250,000			346,045
Beyond 5 Years		21,712		161,303		3,025,000			3,208,015
Unamortized debt premium/(discount) and issuance costs		—		3,795		(35,487	)		(31,692	)
Total	$	66,620		422,165		3,804,513			4,293,298

⁽¹⁾

Includes unsecured public and private debt and unsecured credit facilities.

⁽²⁾

Reflects scheduled principal payments for the remainder of the year.

The Company was in compliance as of June 30, 2020, with the financial and other covenants under its unsecured public and private placement debt and unsecured credit facilities, and expects to remain in compliance for the next twelve months and thereafter.

Derivative Financial Instruments

6 Months Ended

Jun. 30, 2020

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

6.	Derivative Financial Instruments

The Company may use derivative financial instruments, including interest rate swaps, caps, options, floors, and other interest rate derivative contracts, to hedge all or a portion of the interest rate risk associated with its borrowings. The principal objective of such arrangements is to minimize the risks and/or costs associated with the Company’s operating and financial structure as well as to hedge specific anticipated transactions. The Company does not intend to utilize derivatives for speculative or other purposes other than interest rate risk management. The use of derivative financial instruments carries certain risks, including the risk that the counterparties to these contractual arrangements are not able to perform under the agreements. To mitigate this risk, the Company only enters into derivative financial instruments with counterparties with high credit ratings and with major financial institutions with which the Company and its affiliates may also have other financial relationships. The Company does not anticipate that any of the counterparties will fail to meet their obligations.

The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

The following table summarizes the terms and fair values of the Company's derivative financial instruments, as well as their classification on the Consolidated Balance Sheets:

						Fair Value
(in thousands)						Assets (Liabilities) ⁽¹⁾
Effective Date	Maturity Date	Notional Amount		Receive Variable Rate of	Pay Fixed Rate of	June 30, 2020			December 31, 2019
8/1/16	1/5/22	$	265,000	1 Month LIBOR with Floor	1.053%	$	(3,578	)		2,674
4/7/16	4/1/23		19,588	1 Month LIBOR	1.303%		(606	)		148
12/1/16	11/1/23		32,664	1 Month LIBOR	1.490%		(1,393	)		84
9/17/19	3/17/25		24,000	1 Month LIBOR	1.542%		(1,455	)		81
6/2/17	6/2/27		36,879	1 Month LIBOR with Floor	2.366%		(4,140	)		(1,515	)
						$	(11,172	)		1,472

⁽¹⁾	Derivatives in an asset position are included within Other assets in the accompanying Consolidated Balance Sheets, while those in a liability position are included within Accounts payable and other liabilities.

These derivative financial instruments are all interest rate swaps, which are designated and qualify as cash flow hedges. The Company does not use derivatives for trading or speculative purposes and, as of June 30, 2020, does not have any derivatives that are not designated as hedges.

The changes in the fair value of derivatives designated and qualifying as cash flow hedges is recorded in Accumulated Other Comprehensive Loss (“AOCI”) and subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings.

The following table represents the effect of the derivative financial instruments on the accompanying consolidated financial statements:

Location and Amount of Gain (Loss) Recognized in OCI on Derivative							Location and Amount of Gain (Loss) Reclassified from AOCI into (Loss) Income					Total amounts presented in the Consolidated Statements of Operations in which the effects of cash flow hedges are recorded
	Three months ended June 30,							Three months ended June 30,					Three months ended June 30,
(in thousands)	2020			2019				2020		2019			2020		2019
Interest rate swaps	$	(2,442	)		(9,227	)	Interest expense	$	2,484		584	Interest expense, net	$	40,375		37,173

	Six months ended June 30,							Six months ended June 30,					Six months ended June 30,
(in thousands)	2020			2019				2020		2019			2020		2019
Interest rate swaps	$	(18,521	)		(14,716	)	Interest expense	$	3,909		408	Interest expense, net	$	77,811		74,925

As of June 30, 2020, the Company expects approximately $7.0 million of net deferred losses on derivative instruments in AOCI, including the Company's share from its Investments in real estate partnerships, to be reclassified into earnings during the next 12 months. Included in the reclassification is $1.4 million related to previously settled swaps on the Company's ten and thirty year fixed rate unsecured debt.

Leases

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Lessor, Operating Leases

Leases

All of the Company’s leases are classified as operating leases. The Company's Lease income is comprised of both fixed and variable income, as follows:

Fixed and in-substance fixed lease income includes stated amounts per the lease contract, which are primarily related to base rent, and in some cases stated amounts for common area maintenance (“CAM”), real estate taxes, and insurance. Income for these amounts is recognized on a straight-line basis.

Variable lease income includes the following two main items in the lease contracts:

(i) Recoveries from tenants represents amounts tenants are contractually obligated to reimburse the Company for the tenants’ portion of actual Recoverable Costs incurred. Generally the Company’s leases provide for the tenants to reimburse the Company based on the tenants’ share of the actual costs incurred in proportion to the tenants’ share of leased space in the property.

(ii) Percentage rent represents amounts billable to tenants based on the tenants' actual sales volume in excess of levels specified in the lease contract.

The following table provides a disaggregation of lease income recognized as either fixed or variable lease income based on the criteria specified in ASC Topic 842:

(in thousands)	Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019
Operating lease income
Fixed and in-substance fixed lease income	$	202,467			200,909		$	407,409			403,072
Variable lease income		61,748			62,610			126,417			125,445
Other lease related income, net:
Above/below market rent and tenant rent inducement amortization, net		10,416			6,793			23,296			20,247
Uncollectible straight-line rent		(16,287	)		(3,496	)		(20,189	)		(3,781	)
Uncollectible amounts in lease income		(35,792	)		(580	)		(39,844	)		(1,444	)
Total lease income	$	222,552			266,236		$	497,089			543,539

Lease income for operating leases with fixed payment terms is recognized on a straight-line basis over the expected term of the lease for all leases for which collectibility is considered probable at the commencement date. At lease commencement, the Company generally expects that collectibility is probable due to the Company’s credit checks on tenants and other creditworthiness analysis undertaken before entering into a new lease; therefore, income from most operating leases is initially recognized on a straight-line basis. For operating leases in which collectibility of Lease income is not considered probable, Lease income is recognized on a cash basis and all previously recognized straight-line rent receivables are reversed in the period in which the Lease income is determined not to be probable of collection. In addition to the lease-specific collectibility assessment performed under Topic 842, the Company also recognizes a general reserve, as a reduction to Lease income, for its portfolio of operating lease receivables which are not expected to be fully collectible based on the Company’s historical collection experience.

During the six months ended June 30, 2020, the Company experienced a significantly higher rate of uncollectible lease income driven by changes in expectations of collectibility of both past due rents and recoveries and future rent steps given the impact of the COVID-19 pandemic on our tenants.

Additionally, certain tenants experiencing economic difficulties during this pandemic have sought rent concessions, which the Company has granted, to date, primarily in the form of rent deferrals. In April 2020, the FASB issued interpretive guidance relating to the accounting for lease concessions provided as a result of COVID-19. In this guidance, entities can elect not to apply lease modification accounting with respect to such lease concessions, and instead, treat the concession as if it was a part of the existing contract. This guidance is only applicable to COVID-19 related lease concessions that do not result in a substantial increase in the right of the lessor or the obligations of the lessee. The Company has elected to treat concessions that satisfy this criteria as though the concession was part of the existing contract and therefore not treated like a lease modification. Since the COVID-19 pandemic began, the Company has executed over 600 rent deferral agreements, representing $16.4 million of rent or 1.8% of annual base rent, within its consolidated real estate portfolio and our unconsolidated real estate investment partnerships. This deferred rent represents a weighted average deferral period of approximately 3 months, with weighted average repayment periods of approximately 10 months. The Company will continue to negotiate with other tenants, which may result in further rent concessions as determined necessary and appropriate, and generally includes consideration of the tenants’ business performance, ability to sustain their business in the current environment, as well as an assessment of their credit worthiness and ability to repay such amounts in the future.

The following table represents the components of Tenant and other receivables in the accompanying Consolidated Balance Sheets:

(in thousands)	June 30, 2020		December 31, 2019
Tenant receivables ⁽¹⁾	$	62,228	$	35,526
Straight-line rent receivables		94,512		107,087
Other receivables⁽²⁾		29,492		26,724
Total tenant and other receivables	$	186,232	$	169,337

⁽¹⁾

Tenant receivables include $6.5 million of lease payments due under rent deferral agreements executed as of June 30, 2020.

⁽²⁾

Other receivables include construction receivables, insurance receivables, and amounts due from real estate partnerships for Management, transaction and other fee income.

Fair Value Measurements

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

8.	Fair Value Measurements

(a) Disclosure of Fair Value of Financial Instruments

All financial instruments of the Company are reflected in the accompanying Consolidated Balance Sheets at amounts which, in management's estimation, reasonably approximate their fair values, except for the following:

	June 30, 2020				December 31, 2019
(in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Notes payable	$	4,028,767		4,321,036		3,435,161		3,688,604
Unsecured credit facilities	$	264,531		263,891		484,383		489,496

The above fair values represent management's estimate of the amounts that would be received from selling those assets or that would be paid to transfer those liabilities in an orderly transaction between market participants as of June 30, 2020 and December 31, 2019, respectively. These fair value measurements maximize the use of observable inputs. However, in situations where there is little, if any, market activity for the asset or liability at the measurement date, the fair value measurement reflects the Company's own judgments about the assumptions that market participants would use in pricing the asset or liability.

The Company develops its judgments based on the best information available at the measurement date, including expected cash flows, appropriate risk-adjusted discount rates, and available observable and unobservable inputs. Service providers involved in fair value measurements are evaluated for competency and qualifications on an ongoing basis. As considerable judgment is often necessary to estimate the fair value of these financial instruments, the fair values presented above are not necessarily indicative of amounts that will be realized upon disposition of the financial instruments.

(b) Fair Value Measurements

The following financial instruments are measured at fair value on a recurring basis:

Securities

The Company has investments in marketable securities that are included within Other assets on the accompanying Consolidated Balance Sheets. The fair value of the securities was determined using quoted prices in active markets, which are considered Level 1 inputs of the fair value hierarchy. Changes in the value of securities are recorded within Net investment (income) loss in the accompanying Consolidated Statements of Operations, and include unrealized gains of $4.3 million and $525,000 during the three months ended June 30, 2020 and 2019, respectively, and unrealized losses of $1.1 million and unrealized gains of $2.7 million for the six months ended June 30, 2020 and 2019, respectively.

Available-for-Sale Debt Securities

Available-for-sale debt securities consist of investments in certificates of deposit and corporate bonds, and are recorded at fair value using matrix pricing methods to estimate fair value, which are considered Level 2 inputs of the fair value hierarchy. Unrealized gains or losses on these debt securities are recognized through other comprehensive income.

Interest Rate Derivatives

The fair value of the Company's interest rate derivatives is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty's nonperformance risk in the fair value measurements.

Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by the Company and its counterparties. The Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its interest rate swaps. As a result, the Company determined that its interest rate swaps valuation in its entirety is classified in Level 2 of the fair value hierarchy.

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis:

	Fair Value Measurements as of June 30, 2020
				Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs			Significant Unobservable Inputs
(in thousands)	Balance			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities	$	38,677			38,677		—			—
Available-for-sale debt securities		11,221			—		11,221			—
Interest rate derivatives		—			—		—			—
Total	$	49,898			38,677		11,221			—
Liabilities:
Interest rate derivatives	$	(11,172	)		—		(11,172	)		—

	Fair Value Measurements as of December 31, 2019
				Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs			Significant Unobservable Inputs
(in thousands)	Balance			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities	$	39,599			39,599		—			—
Available-for-sale debt securities		10,755			—		10,755			—
Interest rate derivatives		2,987			—		2,987			—
Total	$	53,341			39,599		13,742			—
Liabilities:
Interest rate derivatives	$	(1,515	)		—		(1,515	)		—

There were no assets measured at fair value on a nonrecurring basis as of June 30, 2020. The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a nonrecurring basis as of December 31, 2019:

Fair Value Measurements as of December 31, 2019

Quoted Prices in Active Markets for Identical Assets

Significant Other Observable Inputs

Significant Unobservable Inputs

Total Gains

(in thousands)

Balance

(Level 1)

(Level 2)

(Level 3)

(Losses)

Operating properties

71,131

—

28,131

43,000

(50,553

)

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Earnings per Share and Unit

6 Months Ended

Jun. 30, 2020

Earnings Per Share And Unit [Abstract]

Earnings per Share and Unit

12.	Earnings per Share and Unit

Parent Company Earnings per Share

The following summarizes the calculation of basic and diluted earnings per share:

	Three months ended June 30,				Six months ended June 30,
(in thousands, except per share data)	2020		2019		2020			2019
Numerator:
Income (loss) attributable to common stockholders - basic	$	19,046		51,728	$	(6,286	)	$	142,174
Income (loss) attributable to common stockholders - diluted	$	19,046		51,728	$	(6,286	)		142,174
Denominator:
Weighted average common shares outstanding for basic EPS		169,643		167,536		168,781			167,488
Weighted average common shares outstanding for diluted EPS ⁽¹⁾		169,971		167,962		168,781			167,877
Income (loss) per common share – basic	$	0.11		0.31	$	(0.04	)		0.85
Income (loss) per common share – diluted	$	0.11		0.31	$	(0.04	)		0.85

⁽¹⁾	The six months ended June 30, 2020 excludes the impact of unvested restricted stock because they would be anti-dilutive, while all other periods presented include the dilutive impact of unvested restricted stock.

Income (loss) allocated to noncontrolling interests of the Operating Partnership has been excluded from the numerator and exchangeable Operating Partnership units have been omitted from the denominator for the purpose of computing diluted earnings per share since the effect of including these amounts in the numerator and denominator would be anti-dilutive. Weighted average exchangeable Operating Partnership units outstanding for the three months ended June 30, 2020 and 2019, was 765,046 and 349,902, respectively. Weighted average exchangeable Operating Partnership units outstanding for the six months ended June 30, 2020 and 2019, was 765,046 and 349,902, respectively.

Operating Partnership Earnings per Unit

The following summarizes the calculation of basic and diluted earnings per unit:

	Three months ended June 30,				Six months ended June 30,
(in thousands, except per share data)	2020		2019		2020			2019
Numerator:
Income (loss) attributable to common unit holders - basic	$	19,133		51,837	$	(6,314	)	$	142,473
Income (loss) attributable to common unit holders - diluted	$	19,133		51,837	$	(6,314	)		142,473
Denominator:
Weighted average common units outstanding for basic EPU		170,409		167,886		169,546			167,838
Weighted average common units outstanding for diluted EPU ⁽¹⁾		170,736		168,312		169,546			168,227
Income (loss) per common unit – basic	$	0.11		0.31	$	(0.04	)		0.85
Income (loss) per common unit – diluted	$	0.11		0.31	$	(0.04	)		0.85

⁽¹⁾	The six months ended June 30, 2020 excludes the impact of unvested restricted stock because they would be anti-dilutive, while all other periods presented include the dilutive impact of unvested restricted stock.

Organization and Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Consolidation

Ownership of the Operating Partnership

Real Estate Partnerships

The major classes of assets, liabilities, and non-controlling equity interests held by the Company's consolidated VIEs, exclusive of the Operating Partnership, are as follows:

(in thousands)	June 30, 2020		December 31, 2019
Assets
Net real estate investments⁽¹⁾	$	130,889		325,464
Cash, cash equivalents and restricted cash⁽¹⁾		4,340		57,269
Liabilities
Notes payable		7,318		17,740
Equity
Limited partners’ interests in consolidated partnerships		30,277		30,655

Revenues And Other Receivables

Revenues and Other Receivables

		Three months ended June 30,				Six months ended June 30,
(in thousands)	Timing of satisfaction of performance obligations	2020		2019		2020		2019
Other property income	Point in time	$	2,435		2,194	$	4,740		4,176
Management, transaction and other fees:
Property management services	Over time		3,353		3,665		7,232		7,428
Asset management services	Over time		1,756		1,760		3,594		3,538
Leasing services	Point in time		529		705		1,239		1,463
Other transaction fees	Point in time		488		1,312		877		1,986
Total management, transaction, and other fees		$	6,126		7,442	$	12,942		14,415

Recent Accounting Pronouncements

The following table provides a brief description of recent accounting pronouncements and expected impact on our financial statements:


Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Recently adopted:

Accounting Standards Update (“ASU”) 2016-13, June 2016, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This ASU applies to how the Company evaluates impairments of any available-for-sale debt securities and any non-operating lease receivables, including lease receivables arising from leases classified as sales-type or direct finance leases.	January 2020	The Company has completed its evaluation and adoption of this standard, which resulted in changes in evaluating impairment of its available-for-sale debt securities. Declines in fair value below amortized cost resulting from credit related factors will be reflected in earnings, within Net investment income in the accompanying Consolidated Statements of Operations. Changes in value from market related factors continue to be recognized in Other comprehensive income (“OCI”). The Company’s investments in available-for-sale debt securities are invested in investment grade quality holdings or U.S. government backed securities, and are well diversified. During the six months ended June 30, 2020, the Company did not recognize any allowance for credit loss. Additionally, the Company’s non-operating lease receivables experienced no credit losses during the six months ended June 30, 2020, and the Company has no other financial instruments, such as lease receivables arising from sales-type or direct finance leases, subject to this ASU.

ASU 2018-19, November 2018, Codification Improvements to Topic 326, Financial Instruments - Credit Losses	This ASU clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases.	January 2020	The Company has completed its evaluation and adoption of this standard with no additional changes in its accounting for operating leases and related receivables.

ASU 2018-13, August 2018, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement	This ASU modifies the disclosure requirements for fair value measurements within the scope of Topic 820, Fair Value Measurements, including the removal and modification of certain existing disclosures, and the addition of new disclosures.	January 2020	The Company has completed its evaluation and adoption of this new standard. The Company does not have any assets or liabilities measured to fair value using Level 3 measurements at June 30, 2020.

Organization and Principles of Consolidation Recent Accounting Pronouncements (Tables)

6 Months Ended

Jun. 30, 2020

Accounting Changes And Error Corrections [Abstract]

Schedule of Variable Interest Entities

The major classes of assets, liabilities, and non-controlling equity interests held by the Company's consolidated VIEs, exclusive of the Operating Partnership, are as follows:

(in thousands)	June 30, 2020		December 31, 2019
Assets
Net real estate investments⁽¹⁾	$	130,889		325,464
Cash, cash equivalents and restricted cash⁽¹⁾		4,340		57,269
Liabilities
Notes payable		7,318		17,740
Equity
Limited partners’ interests in consolidated partnerships		30,277		30,655

Revenues and Other Receivables

		Three months ended June 30,				Six months ended June 30,
(in thousands)	Timing of satisfaction of performance obligations	2020		2019		2020		2019
Other property income	Point in time	$	2,435		2,194	$	4,740		4,176
Management, transaction and other fees:
Property management services	Over time		3,353		3,665		7,232		7,428
Asset management services	Over time		1,756		1,760		3,594		3,538
Leasing services	Point in time		529		705		1,239		1,463
Other transaction fees	Point in time		488		1,312		877		1,986
Total management, transaction, and other fees		$	6,126		7,442	$	12,942		14,415

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The following table provides a brief description of recent accounting pronouncements and expected impact on our financial statements:


Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Recently adopted:

Accounting Standards Update (“ASU”) 2016-13, June 2016, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This ASU applies to how the Company evaluates impairments of any available-for-sale debt securities and any non-operating lease receivables, including lease receivables arising from leases classified as sales-type or direct finance leases.	January 2020	The Company has completed its evaluation and adoption of this standard, which resulted in changes in evaluating impairment of its available-for-sale debt securities. Declines in fair value below amortized cost resulting from credit related factors will be reflected in earnings, within Net investment income in the accompanying Consolidated Statements of Operations. Changes in value from market related factors continue to be recognized in Other comprehensive income (“OCI”). The Company’s investments in available-for-sale debt securities are invested in investment grade quality holdings or U.S. government backed securities, and are well diversified. During the six months ended June 30, 2020, the Company did not recognize any allowance for credit loss. Additionally, the Company’s non-operating lease receivables experienced no credit losses during the six months ended June 30, 2020, and the Company has no other financial instruments, such as lease receivables arising from sales-type or direct finance leases, subject to this ASU.

ASU 2018-19, November 2018, Codification Improvements to Topic 326, Financial Instruments - Credit Losses	This ASU clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases.	January 2020	The Company has completed its evaluation and adoption of this standard with no additional changes in its accounting for operating leases and related receivables.

ASU 2018-13, August 2018, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement	This ASU modifies the disclosure requirements for fair value measurements within the scope of Topic 820, Fair Value Measurements, including the removal and modification of certain existing disclosures, and the addition of new disclosures.	January 2020	The Company has completed its evaluation and adoption of this new standard. The Company does not have any assets or liabilities measured to fair value using Level 3 measurements at June 30, 2020.

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Real Estate Investments (Tables)

6 Months Ended

Jun. 30, 2020

Real Estate [Abstract]

Schedule of business acquisitions

The following tables detail consolidated shopping centers acquired or land acquired for development or redevelopment for the periods set forth below:

(in thousands)

Six months ended June 30, 2020

Date Purchased

Property Name

City/State

Property Type

Ownership

Purchase

Price

Debt

Assumed,

Net of

Premiums

Intangible

Assets

Intangible

Liabilities

1/1/20

Country Walk Plaza ⁽¹⁾

Miami, FL

Operating

100%

39,625

16,359

3,294

2,452

⁽¹⁾	^{The purchase price presented above reflects the purchase price for 100% of the property, of which the Company previously owned a 30% equity interest prior to acquiring the other partner’s interest and gaining control.}

(in thousands)		Six months ended June 30, 2019
Date Purchased	Property Name	City/State	Property Type	Ownership	Purchase Price		Debt Assumed, Net of Premiums		Intangible Assets		Intangible Liabilities
1/8/19	Pablo Plaza ⁽¹⁾	Jacksonville, FL	Operating	100%	$	600		—		—		—
2/8/19	Melrose Market	Seattle, WA	Operating	100%		15,515		—		941		358
6/18/19	The Field at Commonwealth Ph II ⁽²⁾	Chantilly, VA	Development	100%		4,083		—		—		—
6/21/19	Culver Public Market	Culver City, CA	Development	100%		1,279		—		—		—
6/28/19	6401 Roosevelt	Seattle, WA	Operating	100%		3,550		—		—		—
Total property acquisitions					$	25,027		—		941		358

⁽¹⁾

^{The Company purchased a 0.17 acre land parcel adjacent to the Company's existing operating Pablo Plaza for redevelopment.}

⁽²⁾

The Company purchased The Field at Commonwealth Ph II, which is land adjacent to an existing operating property, for future development.

Other Assets (Tables)

6 Months Ended

Jun. 30, 2020

Other Assets [Abstract]

Schedule of Other Assets

The following table represents the components of Other assets in the accompanying Consolidated Balance Sheets as of the dates set forth below:

(in thousands)	June 30, 2020		December 31, 2019
Goodwill, net	$	174,830		307,434
Investments		49,898		50,354
Prepaid and other		24,948		18,169
Derivative assets		—		2,987
Furniture, fixtures, and equipment, net		6,568		7,098
Deferred financing costs, net		3,606		4,687
Total other assets	$	259,850		390,729

Schedule of Goodwill

The following table presents the goodwill balances and activity during the year to date periods ended:

	June 30, 2020									December 31, 2019
(in thousands)	Goodwill			Accumulated Impairment Losses			Total			Goodwill			Accumulated Impairment Losses			Total
Beginning of year balance	$	310,388			(2,954	)		307,434			316,858			(2,715	)		314,143
Goodwill allocated to Provision for impairment		—			(132,179	)		(132,179	)		—			(2,954	)		(2,954	)
Goodwill allocated to Properties held for sale		(963	)		963			—			(2,472	)		—			(2,472	)
Goodwill associated with disposed reporting units:
Goodwill allocated to Provision for impairment		—			—			—			(1,779	)		1,779			—
Goodwill allocated to Gain on sale of real estate		(425	)		—			(425	)		(2,219	)		936			(1,283	)
End of period balance	$	309,000			(134,170	)		174,830			310,388			(2,954	)		307,434

Notes Payable and Unsecured Credit Facilities (Tables)

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Schedule of Debt Net of Unamortized Debt Premium (Discount) and Debt Issuance Costs

The Company’s outstanding debt, net of unamortized debt premium (discount) and debt issuance costs, consisted of the following:

(in thousands)	Weighted Average Contractual Rate	Weighted Average Effective Rate	June 30, 2020		December 31, 2019
Notes payable:
Fixed rate mortgage loans	4.4%	3.9%	$	341,063		342,020
Variable rate mortgage loans ⁽¹⁾	2.8%	2.9%		147,722		148,389
Fixed rate unsecured debt	3.8%	3.9%		3,539,982		2,944,752
Total notes payable				4,028,767		3,435,161
Unsecured credit facilities:
Line of Credit (the "Line") ⁽²⁾	1.2%	1.4%		-		220,000
Term loans	2.0%	2.1%		264,531		264,383
Total unsecured credit facilities				264,531		484,383
Total debt outstanding			$	4,293,298		3,919,544

⁽¹⁾

⁽²⁾

Weighted average effective and contractual rate for the Line is calculated based on a fully drawn Line balance.

Schedule of maturities of long-term debt

Scheduled principal payments and maturities on notes payable and unsecured credit facilities were as follows:

(in thousands)	June 30, 2020
Scheduled Principal Payments and Maturities by Year:	Scheduled Principal Payments		Mortgage Loan Maturities		Unsecured Maturities ⁽¹⁾			Total
2020 ⁽²⁾	$	6,088		27,000		—			33,088
2021		11,598		74,101		—			85,699
2022		11,797		5,848		565,000			582,645
2023		10,124		59,374		—			69,498
2024		5,301		90,744		250,000			346,045
Beyond 5 Years		21,712		161,303		3,025,000			3,208,015
Unamortized debt premium/(discount) and issuance costs		—		3,795		(35,487	)		(31,692	)
Total	$	66,620		422,165		3,804,513			4,293,298

⁽¹⁾

Includes unsecured public and private debt and unsecured credit facilities.

⁽²⁾

Reflects scheduled principal payments for the remainder of the year.

Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2020

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Schedule of derivative instruments

The following table summarizes the terms and fair values of the Company's derivative financial instruments, as well as their classification on the Consolidated Balance Sheets:

						Fair Value
(in thousands)						Assets (Liabilities) ⁽¹⁾
Effective Date	Maturity Date	Notional Amount		Receive Variable Rate of	Pay Fixed Rate of	June 30, 2020			December 31, 2019
8/1/16	1/5/22	$	265,000	1 Month LIBOR with Floor	1.053%	$	(3,578	)		2,674
4/7/16	4/1/23		19,588	1 Month LIBOR	1.303%		(606	)		148
12/1/16	11/1/23		32,664	1 Month LIBOR	1.490%		(1,393	)		84
9/17/19	3/17/25		24,000	1 Month LIBOR	1.542%		(1,455	)		81
6/2/17	6/2/27		36,879	1 Month LIBOR with Floor	2.366%		(4,140	)		(1,515	)
						$	(11,172	)		1,472

⁽¹⁾	Derivatives in an asset position are included within Other assets in the accompanying Consolidated Balance Sheets, while those in a liability position are included within Accounts payable and other liabilities.

Derivative Instruments, Gain (Loss)

The following table represents the effect of the derivative financial instruments on the accompanying consolidated financial statements:

Location and Amount of Gain (Loss) Recognized in OCI on Derivative							Location and Amount of Gain (Loss) Reclassified from AOCI into (Loss) Income					Total amounts presented in the Consolidated Statements of Operations in which the effects of cash flow hedges are recorded
	Three months ended June 30,							Three months ended June 30,					Three months ended June 30,
(in thousands)	2020			2019				2020		2019			2020		2019
Interest rate swaps	$	(2,442	)		(9,227	)	Interest expense	$	2,484		584	Interest expense, net	$	40,375		37,173

	Six months ended June 30,							Six months ended June 30,					Six months ended June 30,
(in thousands)	2020			2019				2020		2019			2020		2019
Interest rate swaps	$	(18,521	)		(14,716	)	Interest expense	$	3,909		408	Interest expense, net	$	77,811		74,925

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Summary of balance sheet fair values

	June 30, 2020				December 31, 2019
(in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Notes payable	$	4,028,767		4,321,036		3,435,161		3,688,604
Unsecured credit facilities	$	264,531		263,891		484,383		489,496

Summary of assets measured on recurring basis

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis:

	Fair Value Measurements as of June 30, 2020
				Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs			Significant Unobservable Inputs
(in thousands)	Balance			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities	$	38,677			38,677		—			—
Available-for-sale debt securities		11,221			—		11,221			—
Interest rate derivatives		—			—		—			—
Total	$	49,898			38,677		11,221			—
Liabilities:
Interest rate derivatives	$	(11,172	)		—		(11,172	)		—

	Fair Value Measurements as of December 31, 2019
				Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs			Significant Unobservable Inputs
(in thousands)	Balance			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities	$	39,599			39,599		—			—
Available-for-sale debt securities		10,755			—		10,755			—
Interest rate derivatives		2,987			—		2,987			—
Total	$	53,341			39,599		13,742			—
Liabilities:
Interest rate derivatives	$	(1,515	)		—		(1,515	)		—

Summary of assets measured on non-recurring basis

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a nonrecurring basis as of December 31, 2019:

Fair Value Measurements as of December 31, 2019

Quoted Prices in Active Markets for Identical Assets

Significant Other Observable Inputs

Significant Unobservable Inputs

Total Gains

(in thousands)

Balance

(Level 1)

(Level 2)

(Level 3)

(Losses)

Operating properties

71,131

—

28,131

43,000

(50,553

)

Earnings per Share and Unit (Tables)

6 Months Ended

Jun. 30, 2020

Schedule of earnings per share

The following summarizes the calculation of basic and diluted earnings per share:

	Three months ended June 30,				Six months ended June 30,
(in thousands, except per share data)	2020		2019		2020			2019
Numerator:
Income (loss) attributable to common stockholders - basic	$	19,046		51,728	$	(6,286	)	$	142,174
Income (loss) attributable to common stockholders - diluted	$	19,046		51,728	$	(6,286	)		142,174
Denominator:
Weighted average common shares outstanding for basic EPS		169,643		167,536		168,781			167,488
Weighted average common shares outstanding for diluted EPS ⁽¹⁾		169,971		167,962		168,781			167,877
Income (loss) per common share – basic	$	0.11		0.31	$	(0.04	)		0.85
Income (loss) per common share – diluted	$	0.11		0.31	$	(0.04	)		0.85

⁽¹⁾	The six months ended June 30, 2020 excludes the impact of unvested restricted stock because they would be anti-dilutive, while all other periods presented include the dilutive impact of unvested restricted stock.

Partnership Interest [Member]

Schedule of earnings per share

The following summarizes the calculation of basic and diluted earnings per unit:

	Three months ended June 30,				Six months ended June 30,
(in thousands, except per share data)	2020		2019		2020			2019
Numerator:
Income (loss) attributable to common unit holders - basic	$	19,133		51,837	$	(6,314	)	$	142,473
Income (loss) attributable to common unit holders - diluted	$	19,133		51,837	$	(6,314	)		142,473
Denominator:
Weighted average common units outstanding for basic EPU		170,409		167,886		169,546			167,838
Weighted average common units outstanding for diluted EPU ⁽¹⁾		170,736		168,312		169,546			168,227
Income (loss) per common unit – basic	$	0.11		0.31	$	(0.04	)		0.85
Income (loss) per common unit – diluted	$	0.11		0.31	$	(0.04	)		0.85

⁽¹⁾	The six months ended June 30, 2020 excludes the impact of unvested restricted stock because they would be anti-dilutive, while all other periods presented include the dilutive impact of unvested restricted stock.

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ (2,442)	$ (9,227)	$ (18,521)	$ (14,716)
Amount reclassified from accumulated other comprehensive loss	2,484	584	3,909	408
Interest Expense	40,375	$ 37,173	77,811	$ 74,925
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			7,000
Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	0		0		$ 2,987
Interest Rate Cash Flow Hedge Liability at Fair Value	(11,172)		(11,172)		(1,515)
Fair Value Inputs Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	0		0		2,987
Interest Rate Cash Flow Hedge Liability at Fair Value	(11,172)		(11,172)		(1,515)
Interest Rate Cash Flow Hedge Derivative At Fair Value Net	(11,172)		$ (11,172)		1,472
Derivative @ 1.053% 265.000M [Member]
Derivative [Line Items]
Derivative, Inception Date			Aug. 01, 2016
Derivative, Maturity Date			Jan. 05, 2022
Derivative, Notional Amount	$ 265,000		$ 265,000
Derivative, Description of Variable Rate Basis			1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	1.053%		1.053%
Interest Rate Cash Flow Hedge Asset at Fair Value					2,674
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (3,578)		$ (3,578)
Derivative @ 1.303% 19.678M [Member]
Derivative [Line Items]
Derivative, Inception Date			Apr. 07, 2016
Derivative, Maturity Date			Apr. 01, 2023
Derivative, Notional Amount	$ 19,588		$ 19,588
Derivative, Description of Variable Rate Basis			1 Month LIBOR
Derivative, Fixed Interest Rate	1.303%		1.303%
Interest Rate Cash Flow Hedge Asset at Fair Value					148
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (606)		$ (606)
Derivative @ 1.490% 32.809M [Member]
Derivative [Line Items]
Derivative, Inception Date			Dec. 01, 2016
Derivative, Maturity Date			Nov. 01, 2023
Derivative, Notional Amount	$ 32,664		$ 32,664
Derivative, Description of Variable Rate Basis			1 Month LIBOR
Derivative, Fixed Interest Rate	1.49%		1.49%
Interest Rate Cash Flow Hedge Asset at Fair Value					84
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (1,393)		$ (1,393)
Derivative @ 1.542% 24.000M [Member]
Derivative [Line Items]
Derivative, Inception Date			Sep. 17, 2019
Derivative, Maturity Date			Mar. 17, 2025
Derivative, Notional Amount	$ 24,000		$ 24,000
Derivative, Description of Variable Rate Basis			1 Month LIBOR
Derivative, Fixed Interest Rate	1.542%		1.542%
Interest Rate Cash Flow Hedge Asset at Fair Value					81
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (1,455)		$ (1,455)
Derivative @ 2.366% 37.022M [Member]
Derivative [Line Items]
Derivative, Inception Date			Jun. 02, 2017
Derivative, Maturity Date			Jun. 02, 2027
Derivative, Notional Amount	$ 36,879		$ 36,879
Derivative, Description of Variable Rate Basis			1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	2.366%		2.366%
Interest Rate Cash Flow Hedge Liability at Fair Value	$ (4,140)		$ (4,140)		$ (1,515)
Swap [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			$ 1,400

Fair Value Measurements (Details) - USD ($)	3 Months Ended			6 Months Ended			12 Months Ended
Fair Value Measurements (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable	$ 4,028,767,000			$ 4,028,767,000	$ 3,435,161,000		$ 3,435,161,000
Unsecured credit facilities	264,531,000			264,531,000	484,383,000		484,383,000
Trading Securities, Change in Unrealized Holding Gain (Loss)	(4,300,000)		$ 525,000	1,100,000	2,700,000
Impairment of Real Estate	(230,000)	$ (10,441,000)		(1,014,000)		$ (12,113,000)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	38,677,000			38,677,000	39,599,000		39,599,000
Available-for-sale Securities	11,221,000			11,221,000	10,755,000		10,755,000
Interest Rate Cash Flow Hedge Liability at Fair Value	0			0	2,987,000		2,987,000
Total	49,898,000			49,898,000	53,341,000		53,341,000
Interest Rate Cash Flow Hedge Liability at Fair Value	(11,172,000)			(11,172,000)	(1,515,000)		(1,515,000)
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Operating properties					71,131,000		71,131,000
Impairment of Real Estate							(50,553,000)
Fair Value Inputs Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Payable, Fair Value	4,321,036,000			4,321,036,000	3,688,604,000		3,688,604,000
Fair Value Inputs Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	0			0	0		0
Available-for-sale Securities	11,221,000			11,221,000	10,755,000		10,755,000
Interest Rate Cash Flow Hedge Liability at Fair Value	0			0	2,987,000		2,987,000
Total	11,221,000			11,221,000	13,742,000		13,742,000
Interest Rate Cash Flow Hedge Liability at Fair Value	(11,172,000)			(11,172,000)	(1,515,000)		(1,515,000)
Fair Value Inputs Level 2 [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Operating properties					28,131,000		28,131,000
Fair Value Inputs Level 2 [Member] \| Unsecured Credit Facilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unsecured credit facilities, Fair Value	263,891,000			263,891,000	489,496,000		489,496,000
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	38,677,000			38,677,000	39,599,000		39,599,000
Available-for-sale Securities	0			0	0		0
Interest Rate Cash Flow Hedge Liability at Fair Value	0			0	0		0
Total	38,677,000			38,677,000	39,599,000		39,599,000
Interest Rate Cash Flow Hedge Liability at Fair Value	0			0	0		0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	0			0	0		0
Available-for-sale Securities	0			0	0		0
Interest Rate Cash Flow Hedge Liability at Fair Value	0			0	0		0
Total	0			0	0		0
Interest Rate Cash Flow Hedge Liability at Fair Value	$ 0			$ 0	0		0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Operating properties					$ 43,000,000		$ 43,000,000

Earnings per Share and Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share Basic [Line Items]
Weighted average common shares/units outstanding for basic EPS/EPU	169,643,000	167,536,000	168,781,000	167,488,000
Weighted average common shares/units outstanding for diluted EPS/EPU	169,971,000	167,962,000	168,781,000	167,877,000
Income (loss) per common share - basic	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Income (loss) per common share - diluted	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Weighted Average Limited Partnership Units Outstanding, Basic	765,046	349,902	765,046	349,902
Partnership Interest [Member]
Earnings Per Share Basic [Line Items]
Weighted average common shares/units outstanding for basic EPS/EPU	170,409,000	167,886,000	169,546,000	167,838,000
Weighted average common shares/units outstanding for diluted EPS/EPU	170,736,000	168,312,000	169,546,000	168,227,000
Income (loss) per common unit - basic	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Income (loss) per common unit - diluted	$ 0.11	$ 0.31	$ (0.04)	$ 0.85
Continuing Operations [Member]
Earnings Per Share Basic [Line Items]
Income (loss) attributable to common stockholders - basic	$ 19,046	$ 51,728	$ (6,286)	$ 142,174
Income (loss) attributable to common stockholders - diluted	19,046	51,728	(6,286)	142,174
Continuing Operations [Member] \| Partnership Interest [Member]
Earnings Per Share Basic [Line Items]
Income (loss) attributable to common stockholders - basic	19,133	51,837	(6,314)	142,473
Income (loss) attributable to common stockholders - diluted	$ 19,133	$ 51,837	$ (6,314)	$ 142,473

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Restricted Cash and Cash Equivalent	$ 3,933	$ 2,542
Deferred costs accumulated amortization	112,589	108,381
Accumulated amortization of acquired lease intangible assets	276,169	259,310
Accumulated accretion of acquired lease intangible liabilities	$ 138,335	$ 131,676
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	220,000,000	220,000,000
Common stock, shares issued	169,664,850	167,571,218
Treasury stock, shares held at cost	466,469	440,574
Exchangeable operating partnership units aggregate redemption value	$ 35,108	$ 47,092
Partnership Interest [Member]
Restricted Cash and Cash Equivalent	3,933	2,542
Deferred costs accumulated amortization	112,589	108,381
Accumulated amortization of acquired lease intangible assets	276,169	259,310
Accumulated accretion of acquired lease intangible liabilities	$ 138,335	$ 131,676
General partner units, outstanding	169,664,850	167,571,218
Limited partner units, outstanding	765,046	746,433

Consolidated Statement of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Stockholders Equity [Abstract]
Common stock/unit per share	$ 0.595	$ 0.585	$ 1.190	$ 1.170

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Capitalized interest	$ 2,449	$ 1,996
Partnership Interest [Member]
Capitalized interest	$ 2,449	$ 1,996

Organization and Significant Accounting Policies - Organization and Principles of Consolidation (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020 USD ($) retail_shopping_center	Jun. 30, 2020 USD ($) retail_shopping_center Rent_Agreement
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Unsecured public and private notes \| $	$ 500.0	$ 500.0
Operating Partnership [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage of outstanding common partnership units		99.60%
COVID-19 [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of base rent collected from tenants	72.00%
Number of mutually accepted agreements \| Rent_Agreement		600
Pro-rata base rent \| $		$ 16.4
Percentage of annual base rent		1.80%
Wholly Owned Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of real estate properties \| retail_shopping_center	300	300
Unconsolidated Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of real estate properties \| retail_shopping_center	115	115

Organization and Significant Accounting Policies - Schedule of Variable Interest Entities (Details) $ in Thousands	Jun. 30, 2020 USD ($) retail_shopping_center	Dec. 31, 2019 USD ($)
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	$ 11,386,309	$ 11,132,253
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	5,189,107	4,842,292
Noncontrolling Interest in Variable Interest Entity	30,277	30,655
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	7,318	17,740
Real Estate [Member] \| Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	130,889	325,464
Cash and Cash Equivalents [Member] \| Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	$ 4,340	$ 57,269
Partially Owned Properties [Member]
Variable Interest Entity [Line Items]
Number of real estate properties \| retail_shopping_center	125
Consolidated Properties [Member]
Variable Interest Entity [Line Items]
Number of real estate properties \| retail_shopping_center	10

Real Estate Investments Business Acquisitions (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Purchase Price		$ 25,027
Debt Assumed, Net of Premiums		0
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		941
Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 358
Country Walk Plaza [Member]
Business Acquisition [Line Items]
Date Purchased	Jan. 01, 2020
Property Name	Country Walk Plaza (1)
City/State	Miami, FL
Ownership	100.00%
Purchase Price	$ 39,625
Debt Assumed, Net of Premiums	16,359
Country Walk Plaza [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets	3,294
Country Walk Plaza [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets	$ 2,452
Pablo Plaza [Member]
Business Acquisition [Line Items]
Date Purchased		Jan. 08, 2019
Property Name		Pablo Plaza (1)
City/State		Jacksonville, FL
Ownership		100.00%
Purchase Price		$ 600
Debt Assumed, Net of Premiums		0
Pablo Plaza [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		0
Pablo Plaza [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 0
Melrose Market [Member]
Business Acquisition [Line Items]
Date Purchased		Feb. 08, 2019
Property Name		Melrose Market
City/State		Seattle, WA
Ownership		100.00%
Purchase Price		$ 15,515
Debt Assumed, Net of Premiums		0
Melrose Market [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		941
Melrose Market [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 358
The Field At Commonwealth PhII [Member]
Business Acquisition [Line Items]
Date Purchased		Jun. 18, 2019
Property Name		The Field at Commonwealth Ph II (2)
City/State		Chantilly, VA
Ownership		100.00%
Purchase Price		$ 4,083
Debt Assumed, Net of Premiums		0
The Field At Commonwealth PhII [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		0
The Field At Commonwealth PhII [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 0
Culver Public Market [Member]
Business Acquisition [Line Items]
Date Purchased		Jun. 21, 2019
Property Name		Culver Public Market
City/State		Culver City, CA
Ownership		100.00%
Purchase Price		$ 1,279
Debt Assumed, Net of Premiums		0
Culver Public Market [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		0
Culver Public Market [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 0
6401 Roosevelt [Member]
Business Acquisition [Line Items]
Date Purchased		Jun. 28, 2019
Property Name		6401 Roosevelt
City/State		Seattle, WA
Ownership		100.00%
Purchase Price		$ 3,550
Debt Assumed, Net of Premiums		0
6401 Roosevelt [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		0
6401 Roosevelt [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 0

Real Estate Investments Assets Acquired and Liabilities Assumed (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Business Combinations [Abstract]
Total liabilities assumed	$ 0

Real Estate Investments Business Acquisitions (Parenthetical) (Details) - a	Jun. 30, 2020	Jun. 30, 2019
Country Walk Plaza [Member]
Business Acquisition [Line Items]
Percentage of purchase price of property	100.00%
Percentage of equity interest acquired prior	30.00%
Pablo Plaza [Member]
Business Acquisition [Line Items]
Purchase of building for redevelopment		0.17

Property Dispositions (Details) $ in Thousands	3 Months Ended		6 Months Ended
Property Dispositions (Details) $ in Thousands	Jun. 30, 2020 USD ($) property	Jun. 30, 2019 USD ($) property	Jun. 30, 2020 USD ($) property	Jun. 30, 2019 USD ($) property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from sale of real estate investments	$ 12,092	$ 927	$ 115,614	$ 83,460
Gain on sale of real estate, net of tax	7,448	442	45,453	16,932
Provision for impairment, net of tax	$ 230	$ 10,441	$ 1,014	$ 12,113
Number of properties held for sale \| property	1		1
Wholly Owned Properties [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percent interest sold		100.00%		100.00%
Wholly Owned Properties [Member] \| Minimum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percent interest sold	50.00%		50.00%
Wholly Owned Properties [Member] \| Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percent interest sold	100.00%		100.00%
Real Estate Sold [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision for impairment, net of tax	$ 230	$ (6)	$ 571	$ 1,666
Operating Properties [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties sold \| property	1		3	4
Land [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties sold \| property	3	1	4	3

Schedule of Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Assets [Abstract]
Goodwill, net	$ 174,830	$ 307,434	$ 314,143
Investments	49,898	50,354
Prepaid and other	24,948	18,169
Derivative assets		2,987
Furniture, fixtures, and equipment, net	6,568	7,098
Deferred financing costs, net	3,606	4,687
Total other assets	$ 259,850	$ 390,729

Schedule of Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Schedule of Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill Gross, Beginning balance	$ 310,388	$ 316,858
Goodwill Gross, allocated to Provision for impairment	0	0
Goodwill Gross, allocated to Properties held for sale	(963)	(2,472)
Goodwill, ending balance	309,000	310,388
Goodwill, Accumulated Impairment Losses, Beginning balance	(2,954)	(2,715)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment	(132,179)	(2,954)
Goodwill Accumulated Impairment Losses, allocated to Properties held for sale	963	0
Goodwill, Accumulated Impairment Losses, Ending balance	(134,170)	(2,954)
Goodwill, Beginning balance	307,434	314,143
Goodwill allocated to Provision for impairment	(132,179)	(2,954)
Goodwill allocated to Properties held for sale	0	(2,472)
Goodwill, Ending balance	174,830	307,434
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Goodwill [Line Items]
Goodwill Gross, allocated to Provision for impairment	0	(1,779)
Goodwill Gross, allocated to Gain on sale of real estate	(425)	(2,219)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment	0	1,779
Goodwill Accumulated Impairment Losses, allocated to Gain on sale of real estate	0	936
Goodwill allocated to Provision for impairment	0	0
Goodwill allocated to Gain on sale of real estate	$ (425)	$ (1,283)

Other Assets (Details) $ in Thousands	3 Months Ended		6 Months Ended
Other Assets (Details) $ in Thousands	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($) Reportingunit	Jun. 30, 2019 USD ($)
Goodwill [Line Items]
Goodwill, impairment loss \| $	$ 0		$ 132,128	$ 0
Accumulated Impairment Losses \| Natural Disasters and Other Casualty Events [Member]
Goodwill [Line Items]
Goodwill, impairment loss \| $		$ 132,200
Accumulated Impairment Losses \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Natural Disasters and Other Casualty Events [Member]
Goodwill [Line Items]
Number of reporting units \| Reportingunit			269
Fair Value lower than carrying value \| Reportingunit			87

Schedule of Debt Net of Unamortized Debt Premium (Discount) and Debt Issuance Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term Debt	$ 4,293,298	$ 3,919,544
Fixed Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Contractual Interest Rate	4.40%
Debt, Weighted Average Effective Interest Rate	3.90%
Long-term Debt	$ 341,063	342,020
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Contractual Interest Rate	3.80%
Debt, Weighted Average Effective Interest Rate	3.90%
Long-term Debt	$ 3,539,982	2,944,752
Total credit facilities	264,531	484,383
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 4,028,767	3,435,161
Line of Credit [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Contractual Interest Rate	1.20%
Debt, Weighted Average Effective Interest Rate	1.40%
Line of Credit [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Total credit facilities		220,000
Term Loan [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Contractual Interest Rate	2.00%
Debt, Weighted Average Effective Interest Rate	2.10%
Term Loan [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Total credit facilities	$ 264,531	264,383
London Interbank Offered Rate (LIBOR) [Member] \| Variable Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Contractual Interest Rate	2.80%
Debt, Weighted Average Effective Interest Rate	2.90%
Long-term Debt	$ 147,722	$ 148,389

Schedule of Debt Net of Unamortized Debt Premium (Discount) and Debt Issuance Costs (Parentheticals) (Details) - Variable Rate Mortgage Loans [Member] - London Interbank Offered Rate (LIBOR) [Member]	Jun. 30, 2020
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, effective fixed interest rate	2.50%
Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, effective fixed interest rate	4.10%

Notes Payable and Unsecured Credit Facilities Narrative (Details) - USD ($) $ in Millions	1 Months Ended
	Sep. 02, 2020	Jun. 30, 2020	May 30, 2020
Debt Instrument [Line Items]
Line of credit total borrowing capacity		$ 1,200.0
Senior Notes [Member] \| Notes Due June 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 600.0
Debt Instrument, Interest Rate, Stated Percentage			3.70%
Debt Instrument, Discount Percent			99.805%
Notes Payable to Banks [Member] \| Subsequent Event \| Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.75%
Debt instrument redemption amount	$ 300.0
Expected Proceeds from redemption of debt	$ 325.1

Notes Payable and Unsecured Credit Facilities Schedule of maturities of long-term debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
2020	$ 33,088
2021	85,699
2022	582,645
2023	69,498
2024	346,045
Beyond 5 Years	3,208,015
Unamortized debt premium/(discount) and issuance costs	(31,692)
Total	4,293,298	$ 3,919,544
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total	3,539,982	$ 2,944,752
Scheduled Principal Payments [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
2020	6,088
2021	11,598
2022	11,797
2023	10,124
2024	5,301
Beyond 5 Years	21,712
Unamortized debt premium/(discount) and issuance costs	0
Total	66,620
Mortgage Loan Maturities [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
2020	27,000
2021	74,101
2022	5,848
2023	59,374
2024	90,744
Beyond 5 Years	161,303
Unamortized debt premium/(discount) and issuance costs	3,795
Total	422,165
Unsecured Maturities [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
2020	0
2021	0
2022	565,000
2023	0
2024	250,000
Beyond 5 Years	3,025,000
Unamortized debt premium/(discount) and issuance costs	(35,487)
Total	$ 3,804,513

Equity and Capital Equity and Capital - Common Stock (Details) - USD ($)			3 Months Ended	6 Months Ended
	Feb. 04, 2020	Jan. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Class of Stock [Line Items]
Common stock remaining available for Issuance				500,000,000
Common stock, shares issued				169,664,850		167,571,218
Net proceeds from common stock issuance				$ 125,616,000	$ 0
Stock Repurchase Program, Authorized Amount	$ 250,000,000
Stock Repurchase Program Expiration Date	Feb. 05, 2021
Stock Repurchased and Retired During Period, Value			$ 0		$ (32,778,000)
Common Stock [Member] \| Shopping Center [Member]
Class of Stock [Line Items]
Issuance of exchangeable operating partnership, units		18,613
Issuance of operating partnership, value		$ 1,300,000
Acquisition of additional interest		16.62%
Common Stock [Member] \| Accumulated Other Comprehensive Income (Loss) [Member]
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Value				$ 0
Equity Offering Program [Member]
Class of Stock [Line Items]
Shares issued under program				0	0
Forward Equity Offering [Member] \| Equity Offering Program [Member]
Class of Stock [Line Items]
Common stock, shares issued				1,894,845
Net proceeds from common stock issuance				$ 125,800,000
Maximum [Member]
Class of Stock [Line Items]
Equity Issuances, Common Shares Authorized for Issuance				500,000,000

Stock-Based Compensation (Details) - Restricted Stock [Member]	6 Months Ended
	Jun. 30, 2020 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted \| shares	254,950
Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 64.84

Non-Qualified Deferred Compensation Plan (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Compensation And Retirement Disclosure [Abstract]
Securities	$ 35,890	$ 36,849
Deferred compensation obligation	$ 35,862	$ 36,755

Commitments and Contingencies (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 50.0
Letters of Credit Outstanding, Amount	$ 9.8	$ 12.5