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Leases - Schedule of Earnings Impact (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Straight - Line Rent Reserves	$ 1,128	$ 1,128
Impairment charges		51,549
COVID Earnings Impact	1,860	(60,039)
COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	3,065	1,358
Straight - Line Rent Reserves	817	2,967
Rent Abatements	1,539
Impairment charges		51,549
COVID Earnings Impact	5,421	55,874
Noncontrolling Interests | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	(962)	(498)
Straight - Line Rent Reserves	(646)	(220)
Rent Abatements	(611)
Impairment charges		(39,149)
COVID Earnings Impact	(2,219)	(39,867)
Unconsolidated | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	423	378
Straight - Line Rent Reserves	(19)	282
Rent Abatements	94
COVID Earnings Impact	498	660
Acadia | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	2,526	1,238
Straight - Line Rent Reserves	152	3,029
Rent Abatements	1,022
Impairment charges		12,400
COVID Earnings Impact	3,700	16,667
Core Portfolio | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	1,883	832
Straight - Line Rent Reserves	(8)	2,744
Rent Abatements	756
COVID Earnings Impact	2,631	3,576
Core Portfolio | Noncontrolling Interests | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	17
Straight - Line Rent Reserves	(1)
COVID Earnings Impact	16
Core Portfolio | Unconsolidated | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	386	268
Straight - Line Rent Reserves	(29)	220
Rent Abatements	87
COVID Earnings Impact	444	488
Core Portfolio | Acadia | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	2,286	1,100
Straight - Line Rent Reserves	(38)	2,964
Rent Abatements	843
COVID Earnings Impact	3,091	4,064
Opportunity Funds | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	1,182	526
Straight - Line Rent Reserves	825	223
Rent Abatements	783
Impairment charges		51,549
COVID Earnings Impact	2,790	52,298
Opportunity Funds | Noncontrolling Interests | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	(979)	(498)
Straight - Line Rent Reserves	(645)	(220)
Rent Abatements	(611)
Impairment charges		(39,149)
COVID Earnings Impact	(2,235)	(39,867)
Opportunity Funds | Unconsolidated | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	37	110
Straight - Line Rent Reserves	10	62
Rent Abatements	7
COVID Earnings Impact	54	172
Opportunity Funds | Acadia | COVID-19
Finite-Lived Intangible Assets [Line Items]
Credit Loss - Billed Rents	240	138
Straight - Line Rent Reserves	190	65
Rent Abatements	179
Impairment charges		12,400
COVID Earnings Impact	$ 609	$ 12,603

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