Securitized Debt and Securitized Debt at Fair Value - Summary of Weighted Average Rate on Securities and Certificates Sold (Details)	Dec. 31, 2023	Dec. 31, 2022
2016-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	9.07%	8.59%
2017-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	3.97%	3.92%
2018-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	4.03%	4.05%
2018-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	4.48%	4.46%
2019-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	4.07%	4.06%
2019-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	3.42%	3.46%
2019-3 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	3.29%	3.25%
2020-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	2.85%	2.89%
2020-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	4.61%	4.60%
2021-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	1.76%	1.73%
2021-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	2.02%	2.02%
2021-3 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	2.46%	2.44%
2021-4 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	3.22%	3.20%
2022-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	3.93%	3.93%
2022-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	5.07%	5.07%
2022-MC1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	6.90%	6.91%
2022-3 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	5.70%	5.67%
2022-4 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	6.24%	6.23%
2022-5 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	7.06%	7.10%
2023-1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	7.02%
2023-1R Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	7.68%
2023-2 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	7.19%
2023-RTL1 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	8.24%
2023-3 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	7.82%
2023-4 Trust
Debt Instrument [Line Items]
Weighted average rate on securities and certificates sold	8.38%