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Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Derivative [Line Items] |  |  |  |
Notional amount | $ 2,235,635 |  | $ 2,628,677 |
Market valuations gains (losses), net | 10,905 | $ 12,107 |  |
Accumulated other comprehensive loss | 1,224,163 | 1,137,680 | 1,202,693 | $ 1,083,985
Interest Expense |  |  |  |
Derivative [Line Items] |  |  |  |
Expected amortization of realized losses related to terminated cash flow hedges | 4,000 |  |  |
Interest Rate Agreements Accounted for as Cash Flow Hedges |  |  |  |
Derivative [Line Items] |  |  |  |
Accumulated other comprehensive loss | (67,147) | (71,285) | (68,176) | $ (72,303)
Loan purchase commitments and forward sales commitments |  |  |  |
Derivative [Line Items] |  |  |  |
Market valuations gains (losses), net | (6,000) | (200) |  |
Interest rate futures |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount | 1,230,000 |  | 142,000 |
Interest rate contract |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount |  |  | 50,000 |
Interest rate contract | Cash Flow Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Realized net losses from accumulated comprehensive loss into Interest expense | (1,000) | (1,000) |  |
TBAs |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount |  |  | $ 1,790,000 |
Unsecuritized Residential and Commercial Loans |  |  |  |
Derivative [Line Items] |  |  |  |
Valuation adjustments on derivatives | $ 10,000 | $ (17,000) |  |

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