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Fair Value Measurements Fair value Option, Disclosures (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]    
Loans Held-for-sale, Fair Value Disclosure $ 35,750 $ 7,908
Loans Receivable Held-for-sale, Amount 36,053 11,869
Fair Value, Option, Loans Held as Assets, Aggregate Difference 564 (319)
loans held for sale [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Loans Receivable Held-for-sale, Amount $ 35,186 $ 8,227