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Employee Benefit Plans - Salary Continuation Plan (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Retirement Benefits [Abstract]      
Obligation, at the beginning of the year $ 4,162 $ 4,334 $ 4,600
Benefits paid (536) (460) (554)
Expenses incurred 209 288 288
Obligation, at the end of the year $ 3,835 $ 4,162 $ 4,334