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Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Loss Contingencies [Line Items]    
ACL - OBS credit exposure $ 13,933 $ 14,533
Valuation allowances and reserves, balance 3,900 3,800
Residential Mortgage    
Loss Contingencies [Line Items]    
ACL - OBS credit exposure 9,000 9,100
Valuation allowances and reserves, balance $ 1,100 $ 1,100