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Fair Value of Financial Instruments - Portion of Net Gains (Losses) Attributable to Level 3 Assets and Liabilities Still Held Included in Net Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Loan purchase and interest rate lock commitments |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net (loss) attributable to Level 3 liability still held included in net income | $ (2,314) | $ (1,396) | $ (2,314) | $ (1,396)
HEI Point Entities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 4,176 | 1,251 | 7,065 | 2,445
Held-for-investment at fair value | Residential consumer loans at Redwood |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 3,179 | (680) | 3,103 | (466)
Held-for-investment at fair value | Sequoia |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 2,690 | 170 | 9,600 | 2,519
Held-for-investment at fair value | Freddie Mac SLST |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | (5,176) | (16,760) | (1,810) | (8,001)
Residential investor loans |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | (11,316) | (23,033) | (13,622) | (17,877)
Consolidated Agency multifamily loans | Freddie Mac K-Series |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 452 | 385 | 695 | 748
Residential Investor Term | CAFL |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 7,491 | 10,707 | 17,741 | 1,897
Trading Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 1,582 | 1,829 | 16,087 | 3,073
Available-for-sale securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 514 | (71) | 1,143 | (99)
HEI |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 5,151 | 7,676 | 11,109 | 11,053
Servicer Advance Investments |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 11,611 | 3,665 | 10,977 | 2,313
MSRs |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | 1,633 | 1,692 | 4,311 | 1,278
Excess MSRs |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | (1,368) | 1,070 | (2,614) | 842
Loan purchase and interest rate lock commitments |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net gains (losses) attributable to level 3 assets still held included in net income | $ 5,978 | $ 3,442 | $ 5,985 | $ 3,442

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