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Loans, Analysis of Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Period of reasonable and supportable forecast |  |  |  | 12 months |  |
Provision expense (credit) | $ (4,257) | $ (2,500) | $ (49) | $ (6,756) | $ 12,658 | $ 16,047
Allowance for credit losses to nonperforming loans | 197.20% | 215.50% | 129.00% | 197.20% | 129.00% |
Credit loss reserve as percentage of total loans outstanding | 1.21% | 1.28% | 1.32% | 1.21% | 1.32% |
Credit loss reserve as percentage of total loans outstanding excluding PPP loans | 1.27% | 1.38% | 1.43% | 1.27% | 1.43% |
Consumer [Member] | Consumer Indirect [Member] |  |  |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |  |  |
Provision expense (credit) | $ (1,102) |  | $ 428 | $ (3,381) | $ 3,005 | $ 4,079

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- Definition The credit loss reserve (allowance for credit loss) as a percentage of total loans outstanding excluding PPP loans. + References No definition available. + Details
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- Definition Period of reasonable and supportable forecast used in determining allowance for credit losses, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. + References No definition available. + Details
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- Definition Percentage of allowance for credit loss to nonaccrual financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) + 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 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 http://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 http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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