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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
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Mar. 31, 2023 | Mar. 31, 2022
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |
Balance, beginning of period | $ 100,800 | $ 92,000
Charge-offs | (5,850) | (4,491)
Recoveries |  | 1,895
Provision | 3,909 | 596
Balance, end of period | 100,250 | 90,000
ASU 2022-02 [Member] |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |
Balance, beginning of period | 100,152 |
Charge-offs | (5,850) |
Recoveries | 2,039 |
Provision | 3,909 |
Balance, end of period | 100,250 |
Commercial Loans [Member] |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |
Balance, beginning of period |  | 28,941
Charge-offs |  | (588)
Recoveries |  | 93
Provision |  | 111
Balance, end of period |  | 28,557
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 | (169) |
Recoveries | 541 |
Provision | 1,006 |
Balance, end of period | 36,040 |
Consumer Loans [Member] |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |
Balance, beginning of period |  | 44,253
Charge-offs |  | (3,591)
Recoveries |  | 1,652
Provision |  | 1,277
Balance, end of period |  | 43,591
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 | (5,342) |
Recoveries | 1,377 |
Provision | 1,834 |
Balance, end of period | 48,820 |
Residential [Member] |  |
Activity in allowance for credit losses by portfolio segment [Roll Forward] |  |
Balance, beginning of period |  | 18,806
Charge-offs | (339) | (312)
Recoveries |  | 150
Provision |  | (792)
Balance, end of period |  | $ 17,852
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 | (339) |
Recoveries | 121 |
Provision | 1,069 |
Balance, end of period | $ 15,390 |

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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
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