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Allowance for Credit Losses and Credit Quality of Loans, Summary (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Allowance for credit losses | $ 93,600 | $ 92,000 | $ 90,000 | $ 98,500 | $ 105,000 | $ 110,000
Percentage of allowance of credit losses | 1.20% | 1.23% |  |  |  |
Loans purchased with credit deterioration | $ 0 | $ 0 |  |  |  |
Allowance for credit losses on loans purchased | 3,200 | 6,800 |  |  |  |
Accrued Interest Receivable [Member] |  |  |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Allowance for credit losses | 0 | 0 |  |  |  |
AIR on loans | 19,600 | 19,500 |  |  |  |
Residential [Member] |  |  |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Allowance for credit losses | 16,302 | 18,806 | 17,852 | 19,428 | 20,375 | 21,255
Amount of loans purchased | 8,000 | $ 58,900 |  |  |  |
Residential [Member] | Minimum [Member] |  |  |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Premium on loans purchased |  | 2.00% |  |  |  |
Residential [Member] | Maximum [Member] |  |  |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Premium on loans purchased |  | 5.00% |  |  |  |
Consumer Loans [Member] |  |  |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Allowance for credit losses | 44,940 | $ 44,253 | $ 43,591 | $ 34,881 | $ 34,580 | $ 37,803
Amount of loans purchased | $ 50,100 | $ 92,500 |  |  |  |

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- Definition Amount of loans purchased with credit deterioration during the period. + References No definition available. + Details
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- Definition The premium percentage on loans purchased. + References No definition available. + Details
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- Definition Percentage of allowance for credit loss to total financing receivable outstanding. + References Reference 1: 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 Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
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- Definition Amount, after allowance for credit loss, of accrued interest on financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267960-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL120267845-210446 + Details
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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 http://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 http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 8: 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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