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Fair Value Impaired financing receivables (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Financing Receivable, Impaired [Line Items] |  |  |
Book Value Of Impaired Loans Carried At Fair Value | $ 8,256 | $ 2,167 |
Partial Charge-Offs On Impaired Loans carried at Fair Value | 269 | 313 |
Impaired Financing Receivable, Related Allowance | 5,434 | 5,230 |
Impaired loans carried at fair value | 6,924 | 2,090 |
Impaired Financing Receivable, loans not held at Fair Value, Recorded Investment | 100,199 | 75,324 |
Partial Charge-offs on Impaired Loans carried at Cost | 386 | 406 |
impaired Financing Receivable, loans not held at Fair Value, Carrying Amount | 96,097 | 70,171 |
Impaired Financing Receivable, Recorded Investment | 108,455 | 77,491 | $ 48,144
Partial charge-offs on impaired loans | 655 | 719 |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 5,434 | 5,230 |
Impaired Financing Receivable, Carrying Value | 103,021 | 72,261 |
Impaired Financing Receivable, carried at fair value, related expense | 4,700 | 200 | $ 400
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Impaired Financing Receivable, Related Allowance | 1,332 | 77 |
Financing Receivable, not collateral dependent [Domain] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Impaired Financing Receivable, Related Allowance | $ 4,102 | $ 5,153 |

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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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 (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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