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Loans - Allowance for Loan Losses by Portfolio Type (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Allowance for loan losses |  |  |
Balance, beginning of period | $ 47,547 | $ 47,766 | $ 28,546
Provision (benefit) for loan losses | 18,050 | 3,000 | 23,100
Loans charged off | (2,587) | (4,861) | (4,900)
Recoveries | 2,907 | 1,642 | 1,020
Balance, end of period | 65,917 | 47,547 | 47,766
Commercial |  |  |
Allowance for loan losses |  |  |
Balance, beginning of period | 33,277 | 32,009 | 17,509
Provision (benefit) for loan losses | 9,655 | 4,017 | 17,979
Loans charged off | (2,321) | (4,296) | (4,064)
Recoveries | 2,236 | 1,547 | 585
Balance, end of period | 42,847 | 33,277 | 32,009
Commercial Real Estate |  |  |
Allowance for loan losses |  |  |
Balance, beginning of period | 12,899 | 13,863 | 9,645
Provision (benefit) for loan losses | 6,082 | (617) | 4,527
Loans charged off | 0 | (375) | (581)
Recoveries | 388 | 28 | 272
Balance, end of period | 19,369 | 12,899 | 13,863
Residential real estate |  |  |
Allowance for loan losses |  |  |
Balance, beginning of period | 1,136 | 1,606 | 1,056
Provision (benefit) for loan losses | 2,114 | (452) | 474
Loans charged off | (122) | (42) | (39)
Recoveries | 221 | 24 | 115
Balance, end of period | 3,349 | 1,136 | 1,606
Consumer |  |  |
Allowance for loan losses |  |  |
Balance, beginning of period | 235 | 288 | 336
Provision (benefit) for loan losses | 199 | 52 | 120
Loans charged off | (144) | (148) | (216)
Recoveries | 62 | 43 | 48
Balance, end of period | $ 352 | $ 235 | $ 288

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 + 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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- Definition Amount of credit loss expense (reversal of expense) for 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 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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