Segment Information - Reportable Segment Profit or Loss (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment information
Number of reportable segments | segment	3
Revenues	$ 886,272	$ 913,710	$ 919,454
Expenses
SUMMIT Operator expenses	111,739	101,211	89,207
SUMMIT Operator tax expense	730	9,201	2,647
Real estate taxes	128,187	143,757	138,228
Operating lease rent	24,423	27,292	26,943
Real Estate segment Net operating income	730,630	598,694	605,567
Equity in net loss (income) from unconsolidated joint ventures	(179,695)	(76,509)	(57,958)
Loan loss and other investment reserves, net of recoveries	0	(6,890)	0
Depreciation and amortization	(207,443)	(247,810)	(216,167)
Interest expense, net of interest income	(147,220)	(137,114)	(89,473)
Interest expense on senior obligations of consolidated securitization vehicles	(14,634)	0	0
Non-operating net loss from unconsolidated joint ventures	291,131	282,203	253,466
Marketing, general and administrative	(85,187)	(111,389)	(93,798)
Transaction related costs	(401)	(1,099)	(409)
Gain on early extinguishment of debt	43,762	(870)	0
Depreciable real estate reserves	(104,071)	(382,374)	(6,313)
Depreciable real estate reserves in unconsolidated joint venture	(263,190)
Gain on sale of real estate, net	3,025	(32,370)	(84,485)
Purchase price and other fair value adjustments	88,966	(17,260)	(8,118)
Equity in net gain (loss) on sale of interest in unconsolidated joint venture/real estate	208,144	(13,368)	(131)
Depreciation and amortization	(205,007)	(246,063)	(215,305)
Amortization of deferred financing costs	(6,619)	(7,837)	(7,817)
Interest expense, net of interest income	(119,078)	(102,965)	(64,340)
Net income (loss)	30,222	(599,337)	(76,303)
Operating Segments
Expenses
Net income (loss)	30,379	(233)	52,312
Operating Segments | Real Estate Segment
Segment information
Revenues	709,725	760,745	749,293
Expenses
SUMMIT Operator expenses	0	0	0
SUMMIT Operator tax expense	0	0	0
Operating Expenses	189,598	196,696	174,063
Real estate taxes	128,187	143,757	26,943
Operating lease rent	24,423	27,292	138,228
Net operating income from unconsolidated joint ventures	363,113	205,694	195,508
Real Estate segment Net operating income	730,630	598,694	605,567
Operating Segments | SUMMIT Segment
Segment information
Revenues	133,214	118,260	89,048
Expenses
SUMMIT Operator expenses	111,739	101,211	89,207
SUMMIT Operator tax expense	730	9,201	2,647
Operating Expenses	0	0	0
Real estate taxes	0	0	0
Operating lease rent	0	0	0
Equity in net loss (income) from unconsolidated joint ventures	0
Loan loss and other investment reserves, net of recoveries		0
Depreciation and amortization	(2,436)	(1,747)	(862)
Interest expense, net of interest income	0	0	0
Interest expense on senior obligations of consolidated securitization vehicles	0
Net income (loss)	18,309	6,101	(3,668)
Operating Segments | DPE Segment
Segment information
Revenues	43,333	34,705	81,113
Expenses
SUMMIT Operator expenses	0	0	0
SUMMIT Operator tax expense	0	0	0
Operating Expenses	0	0	0
Real estate taxes	0	0	0
Operating lease rent	0	0	0
Equity in net loss (income) from unconsolidated joint ventures	11,513
Loan loss and other investment reserves, net of recoveries		6,890
Depreciation and amortization	0	0	0
Interest expense, net of interest income	(28,142)	(34,149)	(25,133)
Interest expense on senior obligations of consolidated securitization vehicles	(14,634)
Net income (loss)	$ 12,070	$ (6,334)	$ 55,980