Commitments and Contingencies - Schedule of Financial Instruments with Off-Balance Sheet Credit Risk (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
| Balance at end of period | $ 3,545,756 | $ 3,260,112 |
| Commitments to extend credit, excluding interest rate lock commitments | ||
| Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
| Balance at end of period | 3,492,740 | 3,198,502 |
| Letters of credit | ||
| Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
| Balance at end of period | $ 53,016 | $ 61,610 |