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Commitments and Contingencies - ACL on Unfunded Commitments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other Commitments [Line Items]      
Beginning balance $ 70,185 $ 36,171 $ 35,042
Ending balance 42,361 70,185 36,171
Cumulative Effect, Period of Adoption, Adjustment      
Other Commitments [Line Items]      
Beginning balance 0 1,822 0
Ending balance   0 1,822
Cumulative Effect, Period of Adoption, Adjusted Balance      
Other Commitments [Line Items]      
Beginning balance 70,185 37,993 35,042
Ending balance   70,185 37,993
Unused Commitments to Extend Credit      
Other Commitments [Line Items]      
Beginning balance 4,681 306 306
(Reversal of) provision for credit losses on unfunded commitments (2,074) 673 0
Ending balance 2,607 4,681 306
Unused Commitments to Extend Credit | Cumulative Effect, Period of Adoption, Adjustment      
Other Commitments [Line Items]      
Beginning balance 0 3,702 0
Ending balance   0 3,702
Unused Commitments to Extend Credit | Cumulative Effect, Period of Adoption, Adjusted Balance      
Other Commitments [Line Items]      
Beginning balance $ 4,681 4,008 306
Ending balance   $ 4,681 $ 4,008