Investments in MSR Financing Receivables - Schedule of Investment in MSR Finance Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Receivables [Abstract]
Balance at period beginning	$ 139,225	$ 36,005	$ 125,018	$ 9,346
Capital investments	18,032	39,278	21,219	59,622
Capital distributions	(49,432)		64,552
Accretion of interest income	3,983	1,390	7,365	1,748
Changes in valuation inputs and assumptions	8,452	2,021	31,210	3,936
Balance at period end	$ 120,260	$ 74,652	$ 120,260	$ 74,652