Loans and Allowance for Credit Losses - Schedule of Activity in the Allowance for Loan Losses, by Portfolio Segment, for the Current Year (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | $ 224,377 | |||
| Provision for credit loss expense | $ 17,434 | $ 11,945 | 32,056 | $ 38,742 |
| Ending balance | 238,227 | 238,227 | ||
| Loans, Excluding Acquired Loans | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | 229,908 | 252,168 | 224,377 | 235,019 |
| Provision for credit loss expense | 17,434 | 11,945 | 32,056 | 38,742 |
| Charge-offs | (10,703) | (11,760) | (21,265) | (23,021) |
| Recoveries | 1,588 | 1,184 | 3,059 | 2,797 |
| Net (charge-offs) recoveries | (9,115) | (10,576) | (18,206) | (20,224) |
| Ending balance | 238,227 | 253,537 | 238,227 | 253,537 |
| Loans, Excluding Acquired Loans | Commercial | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | 29,825 | 39,913 | 27,998 | 41,587 |
| Provision for credit loss expense | 3,526 | 5,073 | 6,766 | 6,645 |
| Charge-offs | (3,520) | (8,257) | (5,186) | (12,500) |
| Recoveries | 812 | 469 | 1,065 | 1,466 |
| Net (charge-offs) recoveries | (2,708) | (7,788) | (4,121) | (11,034) |
| Ending balance | 30,643 | 37,198 | 30,643 | 37,198 |
| Loans, Excluding Acquired Loans | Real Estate | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | 188,166 | 200,079 | 183,677 | 181,962 |
| Provision for credit loss expense | 12,889 | 5,269 | 23,558 | 27,712 |
| Charge-offs | (5,465) | (1,450) | (12,094) | (5,875) |
| Recoveries | 151 | 87 | 600 | 186 |
| Net (charge-offs) recoveries | (5,314) | (1,363) | (11,494) | (5,689) |
| Ending balance | 195,741 | 203,985 | 195,741 | 203,985 |
| Loans, Excluding Acquired Loans | Consumer | Credit Card | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | 5,706 | 6,117 | 5,991 | 6,007 |
| Provision for credit loss expense | 943 | 1,338 | 1,867 | 2,697 |
| Charge-offs | (1,368) | (1,702) | (3,045) | (3,162) |
| Recoveries | 244 | 334 | 712 | 545 |
| Net (charge-offs) recoveries | (1,124) | (1,368) | (2,333) | (2,617) |
| Ending balance | 5,525 | 6,087 | 5,525 | 6,087 |
| Loans, Excluding Acquired Loans | Consumer | Other Consumer and Other | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | 6,211 | 6,059 | 6,711 | 5,463 |
| Provision for credit loss expense | 76 | 265 | (135) | 1,688 |
| Charge-offs | (350) | (351) | (940) | (1,484) |
| Recoveries | 381 | 294 | 682 | 600 |
| Net (charge-offs) recoveries | 31 | (57) | (258) | (884) |
| Ending balance | $ 6,318 | $ 6,267 | $ 6,318 | $ 6,267 |