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Fair Value - Narrative (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value option, loans held as assets, 90 days or more past due $ 0 $ 0
Fair value option, loans held as assets, aggregate amount in nonaccrual status $ 0 $ 0