Other Assets, Net - Summary (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Assets, Net
Prepaid expenses	$ 13,215,000	$ 16,440,000
Derivative financial instruments, at fair value	42,341,000	61,622,000
Deferred financing costs, net	10,199,000	5,516,000
Deposits	371,000	483,000
Operating lease right-of-use assets	$ 60,329,000	$ 1,383,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets, net	Total other assets, net
Investments in funds	$ 21,785,000	$ 16,748,000
Other investments	3,487,000	3,524,000
Other	11,754,000	11,312,000
Total other assets, net	163,481,000	117,028,000
Interest and Other Income (loss), Net
Other Assets, Net
Investment funds unrealized gains (losses)	1,300,000	2,100,000	$ 4,600,000
Investment funds realized losses	758,000	1,200,000
Other investments realized gains (losses)	$ 436,000	$ 13,500,000	$ (1,000,000.0)