Investments in Unconsolidated Real Estate Ventures - Financial Information - Table (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Investments in Unconsolidated Real Estate Ventures
Gain (loss) on sale of real estate	$ (5,352,000)	$ 906,000	$ (5,066,000)	$ 41,606,000
Combined balance sheet information:
Real estate, net	4,429,977,000		4,429,977,000		$ 4,536,759,000
Other assets, net	138,503,000		138,503,000		163,481,000
TOTAL ASSETS	5,182,477,000		5,182,477,000		5,518,515,000
Mortgage loans, net	1,816,156,000		1,816,156,000		1,783,014,000
Other liabilities, net	118,373,000		118,373,000		138,869,000
Total liabilities	2,841,880,000		2,841,880,000		2,825,929,000
Total equity	1,882,038,000		1,882,038,000		2,222,876,000
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY	5,182,477,000		5,182,477,000		5,518,515,000
Combined income statement information:
Total revenue	136,026,000	151,562,000	416,530,000	456,619,000
Net loss	(31,309,000)	(66,101,000)	(106,913,000)	(54,045,000)
Investments in Unconsolidated Real Estate Ventures
Investments in Unconsolidated Real Estate Ventures
Impairment of real estate		30,100,000		30,100,000
Combined balance sheet information:
Real estate, net	447,747,000		447,747,000		729,791,000
Other assets, net	64,955,000		64,955,000		137,771,000
TOTAL ASSETS	512,702,000		512,702,000		867,562,000
Mortgage loans, net	228,520,000		228,520,000		226,469,000
Other liabilities, net	26,538,000		26,538,000		47,251,000
Total liabilities	255,058,000		255,058,000		273,720,000
Total equity	257,644,000		257,644,000		593,842,000
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY	512,702,000		512,702,000		$ 867,562,000
Combined income statement information:
Total revenue	7,903,000	23,570,000	29,097,000	68,555,000
Operating income (loss)	776,000	(20,584,000)	6,714,000	(13,005,000)
Net loss	$ (3,226,000)	(27,622,000)	(5,093,000)	(31,557,000)
Prudential Global Investment Management (PGIM) | Central Place Tower | Disposed of by Sale
Investments in Unconsolidated Real Estate Ventures
Gain (loss) on sale of real estate			$ 894,000
CBREI Venture Partner | Stonebridge at Potomac Town Center | Disposed of by Sale
Investments in Unconsolidated Real Estate Ventures
Gain (loss) on sale of real estate		$ 4,600,000		$ 4,600,000