Fair Value Measurements - Roll-forward of Loans held for investment and held for sale and Securitized Debt Measured at Estimated Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans Held For Investment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	$ 276,095	$ 1,359	$ 1,539
Originations	1,079,811	267,278
Loans liquidated	(73,623)	(765)	(163)
Principal paydowns	(9,940)	(261)	(46)
REO Transfer	(777)
Total unrealized (loss) gain included in net income	47,214	7,436	29
Loans repurchased	13,075	1,048
Loans transfer (to held for sale) from held for investment	(25,783)
Ending balance	1,306,072	276,095	1,359
Loans Held For Sale
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Originations	38,036	31,328
Loans liquidated	(46,843)	(31,328)
Principal paydowns	(22)
Total unrealized (loss) gain included in net income	636
Loans transfer (to held for sale) from held for investment	25,783
Ending balance	17,590
Mortgage Servicing Rights
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	9,238	7,152
Additions	0		7,152
Total unrealized (loss) gain included in net income	(660)	2,086
Ending balance	$ 8,578	$ 9,238	$ 7,152