Securitized Debt and Securitized Debt at Fair Value - Summary of Outstanding Bond Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Outstanding bond balance	$ 3,335,143	$ 2,788,909
2016-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance		22,369
2017-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	45,869	59,183
2018-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	33,505	43,596
2018-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	76,871	93,792
2019-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	76,391	91,167
2019-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	66,340	82,508
2019-3 Trust
Debt Instrument [Line Items]
Outstanding bond balance	58,089	67,899
2020-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	106,976	136,643
2020-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	45,180	60,445
2021-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	171,748	196,969
2021-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	143,797	170,072
2021-3 Trust
Debt Instrument [Line Items]
Outstanding bond balance	158,043	178,038
2021-4 Trust
Debt Instrument [Line Items]
Outstanding bond balance	244,919	273,489
2022-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	236,358	256,667
2022-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	210,217	233,045
2022-MC1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	31,508	54,528
2022-3 Trust
Debt Instrument [Line Items]
Outstanding bond balance	257,047	280,066
2022-4 Trust
Debt Instrument [Line Items]
Outstanding bond balance	274,419	301,856
2022-5 Trust
Debt Instrument [Line Items]
Outstanding bond balance	162,925	$ 186,577
2023-1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	177,250
2023-1R Trust
Debt Instrument [Line Items]
Outstanding bond balance	58,237
2023-2 Trust
Debt Instrument [Line Items]
Outstanding bond balance	188,805
2023-RTL1 Trust
Debt Instrument [Line Items]
Outstanding bond balance	81,608
2023-3 Trust
Debt Instrument [Line Items]
Outstanding bond balance	227,228
2023-4 Trust
Debt Instrument [Line Items]
Outstanding bond balance	$ 201,813