Investments in Unconsolidated Real Estate Ventures - Financial Information - Table (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Schedule of Equity Method Investments
Gain (loss) on sale of real estate	$ (136)
Combined balance sheet information:
Real estate, net	4,313,223		$ 4,868,473
Other assets, net	71,385		240,160
TOTAL ASSETS	6,315,880		6,386,206
Mortgages payable, net	1,613,082		1,777,699
Other liabilities, net	106,929		342,565
Total liabilities	2,894,785		2,925,064
Total equity	2,846,608		2,915,910
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY	6,315,880		6,386,206
Combined income statement information:
Revenues	161,965	$ 165,289
Net loss	(77)	(24,069)
Investments in Unconsolidated Real Estate Ventures [Member]
Combined balance sheet information:
Real estate, net	2,019,377		2,116,290
Other assets, net	246,848		264,397
TOTAL ASSETS	2,266,225		2,380,687
Mortgages payable, net	1,011,754		1,089,943
Other liabilities, net	93,685		118,752
Total liabilities	1,105,439		1,208,695
Total equity	1,160,786		1,171,992
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY	2,266,225		$ 2,380,687
Combined income statement information:
Revenues	42,874	48,217
Operating income (loss)	48,426	1,714
Net loss	39,283	$ (6,526)
Landmark | Landmark | The Alaire,The Terano and Parklawn Drive
Schedule of Equity Method Investments
Gain (loss) on sale of real estate	$ 45,100