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Derivative Financial Instruments - Schedule of Notional Amounts of Derivative Contracts Outstanding (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Derivative [Line Items] |  |
Notional amount | $ 13,530,759 | $ 13,737,388
IRLCs |  |
Derivative [Line Items] |  |
Notional amount | 169,759 | 126,388
Derivative contracts to manage future loan sale execution risk | Interest rate swaps |  |
Derivative [Line Items] |  |
Notional amount | 12,230,700 | 12,491,000
Derivative contracts to manage future loan sale execution risk | Interest rate caps |  |
Derivative [Line Items] |  |
Notional amount | 405,000 | 405,000
Derivative contracts to manage future loan sale execution risk | Home loan pipeline hedges |  |
Derivative [Line Items] |  |
Notional amount | 241,000 | 226,000
Derivative contracts not designed to manage future loan sale execution risk | Interest rate swaps |  |
Derivative [Line Items] |  |
Notional amount | 79,300 | 84,000
Derivative contracts not designed to manage future loan sale execution risk | Interest rate caps |  |
Derivative [Line Items] |  |
Notional amount | $ 405,000 | $ 405,000

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