Fair Value of Financial Instruments - Level 3 Liabilities (Details) - Level 3 - Recurring basis - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 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	$ 526,623	$ 563,860	$ 578,879	$ 628,280
Issuances	126,565	0	272,395	0
Payment of principal	(213,082)	(121,977)	(411,168)	(185,142)
Change in unrealized losses	0	0	0	(1,255)
Balance at end of period	440,106	441,883	440,106	441,883
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	680,708	1,555,250	884,495	1,322,362
Issuances	9,463	401,122	22,018	870,606
Payment of principal	(137,009)	(522,515)	(353,351)	(759,111)
Change in unrealized losses	0	0	0	0
Balance at end of period	$ 553,162	$ 1,433,857	$ 553,162	$ 1,433,857