Fair Value of Financial Instruments - Level 3 Liabilities (Details) - Level 3 - Recurring basis - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Agreements with Non-mark-to-market Collateral Provisions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 578,879	$ 628,280
Issuances	145,830	0
Payment of principal	(198,086)	(63,165)
Change in unrealized losses	0	(1,255)
Balance at end of period	526,623	563,860
Agreements with Mark-to-market Collateral Provisions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	884,495	1,322,362
Issuances	12,555	469,484
Payment of principal	(216,342)	(236,596)
Change in unrealized losses	0	0
Balance at end of period	$ 680,708	$ 1,555,250