Derivative Financial Instruments - Schedule of Notional Amounts of Derivative Contracts Outstanding (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative [Line Items] | ||
| Notional amount | $ 24,777,367 | $ 20,911,172 |
| IRLCs | ||
| Derivative [Line Items] | ||
| Notional amount | 695,367 | 532,172 |
| Derivative contracts to manage future loan sale execution risk | Interest rate swaps | ||
| Derivative [Line Items] | ||
| Notional amount | 21,718,947 | 19,113,953 |
| Derivative contracts to manage future loan sale execution risk | Home loan pipeline hedges | ||
| Derivative [Line Items] | ||
| Notional amount | 2,342,000 | 1,244,000 |
| Derivative contracts not designed to manage future loan sale execution risk | Interest rate swaps | ||
| Derivative [Line Items] | ||
| Notional amount | $ 21,053 | $ 21,047 |