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Fair Value of Assets and Liabilities - Quantitative Information about Level 3 Fair Value Measurements (Details) - Non-Recurring Measurements $ in Thousands | Mar. 31, 2021 USD ($) Input | Dec. 31, 2020 USD ($) Input
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Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Other real estate owned | $ |  |  |  | $ 564
Collateral-dependent impaired loans, net of ACL | $ |  | $ 19,732 |  | 26,749
Level 3 |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Other real estate owned | $ |  |  |  | 564
Collateral-dependent impaired loans, net of ACL | $ |  | 19,732 |  | 26,749
Level 3 | Sales Comparison Approach |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Other real estate owned | $ |  |  |  | 564
Level 3 | Sales Comparison Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ACL | $ |  | 18,007 |  | 25,309
Level 3 | Cost Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ACL | $ |  | $ 1,725 |  | 144
Level 3 | Combined Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ACL | $ |  |  |  | $ 1,296
Level 3 | Minimum | Sales Comparison Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Other real estate owned | [1] |  |  | 0.080
Collateral-dependent impaired loans, net of ALLL |  | 0.100 | [1] | 0.100
Level 3 | Minimum | Sales Comparison Approach | Adjustments to comparables |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  | 0.100 |  | 0.000
Level 3 | Minimum | Cost Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL | [1] | 0.100 |  | 0.100
Level 3 | Minimum | Combined Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  |  |  | 0.100
Level 3 | Minimum | Combined Approach | Measurement Input, Discount Rate |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  |  |  | 0.080
Level 3 | Maximum | Sales Comparison Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Other real estate owned | [1] |  |  | 0.100
Collateral-dependent impaired loans, net of ALLL |  | 0.050 | [1] | 0.100
Level 3 | Maximum | Sales Comparison Approach | Adjustments to comparables |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  | 0.050 |  | 1.000
Level 3 | Maximum | Cost Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL | [1] | 0.100 |  | 0.100
Level 3 | Maximum | Combined Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  |  |  | 0.100
Level 3 | Maximum | Combined Approach | Measurement Input, Discount Rate |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  |  |  | 0.080
Level 3 | Weighted Average Range | Sales Comparison Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Other real estate owned | [1] |  |  | 0.090
Collateral-dependent impaired loans, net of ALLL |  | 0.051 | [1] | 0.001
Level 3 | Weighted Average Range | Sales Comparison Approach | Adjustments to comparables |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  | 0.063 |  | 0.111
Level 3 | Weighted Average Range | Cost Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL | [1] | 0.100 |  | 0.100
Level 3 | Weighted Average Range | Combined Approach | Selling costs |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  |  |  | 0.100
Level 3 | Weighted Average Range | Combined Approach | Measurement Input, Discount Rate |  |  |  |
Quantitative Information About Level 3 Fair Value Measurements |  |  |  |
Collateral-dependent impaired loans, net of ALLL |  |  |  | 0.080
[1] | The range for selling cost inputs represents reductions to the fair value of the assets.

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- Definition Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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