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Asset-Backed Securities Issued - Components of Asset-Backed Securities Issued by Consolidated Securitization Entities Sponsored, Along With Other Selected Information (Details) - Asset-backed securities issued $ in Thousands | Jun. 30, 2022 USD ($) series | Dec. 31, 2021 USD ($) series
--- | --- | ---
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 8,584,146 | $ 9,253,557
Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | (840,698) | 34,092
Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 9,191,472 | 8,970,474
Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 233,372 | 248,991
Legacy Sequoia |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 207,647 | $ 227,881
Number of series | series | 20 | 20
Legacy Sequoia | Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ (22,262) | $ (32,243)
Legacy Sequoia | Minimum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 1.59% | 0.23%
Legacy Sequoia | Maximum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 2.88% | 1.44%
Legacy Sequoia | Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 229,651 | $ 259,505
Legacy Sequoia | Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 258 | 619
Sequoia |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 3,288,682 | $ 3,383,048
Number of series | series | 17 | 16
Sequoia | Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ (505,456) | $ (2,774)
Sequoia | Minimum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 2.52% | 2.40%
Sequoia | Maximum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 5.00% | 5.03%
Sequoia | Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 3,733,955 | $ 3,353,073
Sequoia | Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 60,183 | 32,749
CAFL |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 3,207,867 | $ 3,474,898
Number of series | series | 18 | 16
CAFL | Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ (244,629) | $ 16,407
CAFL | Minimum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 2.34% | 2.64%
CAFL | Maximum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 5.34% | 5.24%
CAFL | Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 3,303,312 | $ 3,264,766
CAFL | Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 149,184 | 193,725
Freddie Mac SLST |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 1,358,459 | $ 1,588,463
Number of series | series | 3 | 3
Debt instrument, face amount | $ 117,000 | $ 145,000
Freddie Mac SLST | Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ (48,723) | $ 41,111
Freddie Mac SLST | Minimum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 3.50% | 3.50%
Freddie Mac SLST | Maximum |  |
Debt Instrument [Line Items] |  |
Range of weighted average interest rates, by series | 4.75% | 4.75%
Freddie Mac SLST | Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 1,392,244 | $ 1,535,638
Freddie Mac SLST | Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 14,938 | 11,714
Freddie Mac K-Series |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 411,380 | $ 441,857
Range of weighted average interest rates, by series | 3.41% | 3.41%
Number of series | series | 1 | 1
Freddie Mac K-Series | Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ (12,158) | $ 12,973
Freddie Mac K-Series | Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 414,729 | 418,700
Freddie Mac K-Series | Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 8,809 | 10,184
HEI |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ 110,111 | $ 137,410
Range of weighted average interest rates, by series | 3.74% | 3.31%
Number of series | series | 1 | 1
HEI | Revision of Prior Period, Accounting Standards Update, Adjustment |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | $ (7,470) | $ (1,382)
HEI | Certificates with principal balance |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 117,581 | 138,792
HEI | Interest-only certificates |  |
Debt Instrument [Line Items] |  |
ABS Issued, Net | 0 | 0
CoreVest |  |
Debt Instrument [Line Items] |  |
Debt instrument, face amount | $ 485,000 | $ 270,000

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