ACL for Loans - Interest Lost On Non-accrual Loans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Receivables [Abstract]      
Income that would have been recognized if non-accrual loans had been current $ 2,028 $ 1,946 $ 1,893
Less income recognized 633 472 244
Reduction in interest income $ 1,395 $ 1,474 $ 1,649