Related Party Transactions and Investments in Non-Consolidated Entities - Summarized financial information for Sponsored REITs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Data (unaudited):
Real Estate Investment Property, Net	$ 890,824	$ 1,103,248
Total liabilities	(456,525)	(472,930)
Total stockholders' equity	712,805	768,736	$ 783,203	$ 768,091
Operating Data (unaudited):
Depreciation and amortization	(57,240)	(65,697)	(81,041)
Interest expense	(24,318)	(22,808)	(32,273)
Net income (loss)	(48,110)	1,094	92,717
Related party revenue: Other
Operating Data (unaudited):
Other revenues	$ 261	$ 21	$ 77