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Allowance for Credit Losses and Credit Quality of Loans, Allowance for Credit Losses by Portfolio Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |
Balance, beginning of period | $ 116,000 | $ 114,400 | $ 114,400
Charge-offs | (8,155) | (6,680) | (25,728)
Recoveries | 1,601 | 2,001 |
Provision | 7,554 | 5,579 |
Balance, end of period | 117,000 | 115,300 | 116,000
Commercial Loans [Member] |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |
Balance, beginning of period | 45,453 | 45,903 | 45,903
Charge-offs | (2,222) | (985) |
Recoveries | 107 | 198 |
Provision | 5,392 | (644) |
Balance, end of period | 48,730 | 44,472 | 45,453
Consumer Loans [Member] |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |
Balance, beginning of period | 43,987 | 46,427 | 46,427
Charge-offs | (5,876) | (5,581) |
Recoveries | 1,406 | 1,651 |
Provision | 2,179 | 4,922 |
Balance, end of period | 41,696 | 47,419 | 43,987
Residential [Member] |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |
Balance, beginning of period | 26,560 | 22,070 | 22,070
Charge-offs | (57) | (114) | (211)
Recoveries | 88 | 152 |
Provision | (17) | 1,301 |
Balance, end of period | $ 26,574 | $ 23,409 | $ 26,560

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