OBS Loan Commitments - Schedule of Financial Instruments Approximate Value (Details) - USD ($) $ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Financial instruments with off-balance sheet risk | ||
| Total commitments | $ 4,265,735 | $ 3,790,201 |
| Commitments to extend credit | ||
| Financial instruments with off-balance sheet risk | ||
| Total commitments | 3,482,436 | 3,115,682 |
| MW commitments | ||
| Financial instruments with off-balance sheet risk | ||
| Total commitments | 671,225 | 562,589 |
| Standby and commercial letters of credit | ||
| Financial instruments with off-balance sheet risk | ||
| Total commitments | $ 112,074 | $ 111,930 |