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Loans, Analysis of Allowance for Credit Losses (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) Quarter | Dec. 31, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Allowance for Credit Losses [Abstract] |  |  |  |
Period of reasonable and supportable forecast | 12 months |  |  |
Provision for credit losses | $ (2,499) | $ 1,000 | $ 12,707 | $ 16,047
Decrease in allowance for credit losses attributed to historical loss factors | $ (2,400) |  |  |
Allowance for credit losses to nonperforming loans | 215.50% | 180.70% | 139.80% | 180.70%
Credit loss reserve as percentage of total loans outstanding | 1.28% | 1.35% | 1.50% | 1.35%
Credit loss reserve as percentage of total loans outstanding excluding PPP loans | 1.38% | 1.46% |  | 1.46%
Consumer [Member] | Consumer Indirect [Member] |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |
Provision for credit losses | $ (2,279) |  | $ 2,575 | $ 4,079
Net losses | $ 0 |  |  |
Number of rolling quarters | Quarter | 12 |  |  |
Percentage of average losses | 0.35% |  |  |
Residential [Member] |  |  |  |
Allowance for Credit Losses [Abstract] |  |  |  |
Net losses | $ 0 |  |  |
Number of rolling quarters | Quarter | 12 |  |  |
Percentage of average losses | 0.07% |  |  |

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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 The credit loss reserve (allowance for credit loss) as a percentage of total loans outstanding. + References No definition available. + Details
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- Definition Increase (decrease) in the amount of valuation allowance for credit losses attributed to historical loss factors on financing receivables that are expected to be uncollectible. + 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 Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + 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)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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