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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 | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period | $ 100,250 | $ 90,000 | $ 100,800 | $ 92,000
Charge-offs | (5,149) | (4,046) | (10,999) | (8,537)
Recoveries | 1,693 | 3,256 |  | 5,151
Provision | 3,606 | 4,390 | 7,515 | 4,986
Balance, end of period | 100,400 | 93,600 | 100,400 | 93,600
ASU 2022-02 [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period |  |  | 100,152 |
Charge-offs |  |  | (10,999) |
Recoveries |  |  | 3,732 |
Provision |  |  | 7,515 |
Balance, end of period | 100,400 |  | 100,400 |
Commercial Loans [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period | 36,040 | 28,557 |  | 28,941
Charge-offs | (207) | (447) |  | (1,035)
Recoveries | 97 | 837 |  | 930
Provision | 1,033 | 3,411 |  | 3,522
Balance, end of period | 36,963 | 32,358 | 36,963 | 32,358
Commercial Loans [Member] | ASU 2022-02 [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period |  |  | 34,662 |
Charge-offs |  |  | (376) |
Recoveries |  |  | 638 |
Provision |  |  | 2,039 |
Balance, end of period | 36,963 |  | 36,963 |
Consumer Loans [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period | 48,820 | 43,591 |  | 44,253
Charge-offs | (4,837) | (3,509) |  | (7,100)
Recoveries | 1,441 | 2,117 |  | 3,769
Provision | 2,459 | 2,741 |  | 4,018
Balance, end of period | 47,883 | 44,940 | 47,883 | 44,940
Consumer Loans [Member] | ASU 2022-02 [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period |  |  | 50,951 |
Charge-offs |  |  | (10,179) |
Recoveries |  |  | 2,818 |
Provision |  |  | 4,293 |
Balance, end of period | 47,883 |  | 47,883 |
Residential [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period | 15,390 | 17,852 |  | 18,806
Charge-offs | (105) | (90) | (444) | (402)
Recoveries | 155 | 302 |  | 452
Provision | 114 | (1,762) |  | (2,554)
Balance, end of period | 15,554 | $ 16,302 | 15,554 | $ 16,302
Residential [Member] | ASU 2022-02 [Member] |  |  |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |  |  |
Balance, beginning of period |  |  | 14,539 |
Charge-offs |  |  | (444) |
Recoveries |  |  | 276 |
Provision |  |  | 1,183 |
Balance, end of period | $ 15,554 |  | $ 15,554 |

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