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Fair Value - Summary of Reconciliation of the Changes in Fair Value of Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Purchases, issuances, sales and settlements |  |  |
Gain (loss) on derivatives, net | $ (82,500) | $ (8,200) | $ (23,500)
Capitalization of advances on Ginnie Mae modifications | $ 9,300 | $ 6,400 | $ 18,100
Total realized and unrealized gains and (losses): |  |  |
FairValueRecurringBasisUnobservableInputReconciliationAssetGainLossStatementOfIncomeExtensibleListNotDisclosedFlag | Change in fair value (1) | Change in fair value (1) | Change in fair value (1)
Interest Rate Lock Commitments |  |  |
Purchases, issuances, sales and settlements |  |  |
Gain (loss) on derivatives, net | $ (6,200) | $ 6,300 | $ (18,800)
Level 3 | Loans Held-For-Sale, Fair Value |  |  |
Purchases, issuances, sales and settlements |  |  |
Loans held for investment, at fair value | 4,800 | 4,500 |
Capitalization of advances on Ginnie Mae modifications | 9,400 | 4,400 |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Other | (2,900) | (900) |
Loans Held-For-Sale, Fair Value | Level 3 |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Beginning balance | 203,100 | 32,100 | 220,900
Purchases, issuances, sales and settlements |  |  |
Purchases and other | 550,900 | 364,200 | 140,400
Sales | (170,800) | (102,400) | (318,000)
Settlements | (92,200) | (60,500) |
Receivables, net | (32,900) | (34,700) | (4,200)
Other assets | (26,800) | (15,200) | (300)
Purchases, issuances, sales and settlements, total | 245,300 | 159,300 | (182,100)
Total realized and unrealized gains and (losses): |  |  |
Included in earnings | 24,500 | (11,700) | 6,800
Ending balance | 472,900 | 203,100 | 32,100
ESS Financing Liability | Level 3 |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Beginning balance | (248,900) | (199,000) | 0
Purchases, issuances, sales and settlements |  |  |
Purchases and other | 0 |  | 0
Issuances | (23,800) | (68,700) | (200,900)
Sales | 0 |  | 0
Settlements | 28,000 | 29,900 | 6,600
Loans held for sale, at fair value (1) | 0 |  | 0
REO (Other assets) |  | 0 |
Other assets |  |  | (6,100)
Purchases, issuances, sales and settlements, total | 4,200 | (38,700) | (200,500)
Total realized and unrealized gains and (losses): |  |  |
Included in earnings | 18,700 | 11,100 | (1,400)
Ending balance | (263,300) | (248,900) | (199,000)
IRLCs | Level 3 |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Beginning balance | 5,600 |  |
Purchases, issuances, sales and settlements |  |  |
Issuances | 28,900 | 39,300 | 168,000
Loans held for sale, at fair value (1) | (26,000) | (64,900) | (141,500)
REO (Other assets) |  | 0 |
Purchases, issuances, sales and settlements, total | 3,000 | (25,600) |
Total realized and unrealized gains and (losses): |  |  |
Included in earnings | (9,100) |  |
Ending balance | $ (500) | 5,600 |
Interest Rate Caps | Level 3 |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Beginning balance |  | (700) | 18,100
Purchases, issuances, sales and settlements |  |  |
Purchases, issuances, sales and settlements, total |  |  | 26,500
Total realized and unrealized gains and (losses): |  |  |
Included in earnings |  | $ 32,000 | 45,300
Ending balance |  |  | $ (700)

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