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Fair Value Measurements Fair Value Option, Disclosures (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]    
Value under fair value options $ 4,335 $ 14,000
Loans held for sale (valued under fair value option $4,335 and $14,000) 4,335 14,012
Fair Value, Option, Loans Held as Assets, Aggregate Difference (510) 489
loans held for sale [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Loans held for sale (valued under fair value option $4,335 and $14,000) $ 4,845 $ 13,511