Commitments and Contingencies - Schedule of Commitments (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] | ||
| Total unfunded off-balance-sheet credit risk | $ 4,692,252 | $ 4,199,791 |
| Commitments to extend credit | ||
| Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] | ||
| Total unfunded off-balance-sheet credit risk | 4,623,214 | 4,099,313 |
| Standby letters of credit | ||
| Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] | ||
| Total unfunded off-balance-sheet credit risk | 20,402 | 51,842 |
| Airplane purchase agreement commitments | ||
| Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] | ||
| Total unfunded off-balance-sheet credit risk | 48,636 | 48,636 |
| Commitments to Extend Credit, Letters Issued | ||
| Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] | ||
| Total unfunded off-balance-sheet credit risk | $ 1,780,000 | $ 1,270,000 |