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Stock Incentive Plans - 2016 Equity Compensation Plan Restricted Stock Units Award Activity (Details) - Restricted Stock - 2016 Equity Compensation Plan - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Restricted shares    
Beginning balance (in shares) 218,013 222,786
Issued (in shares) 114,395 107,930
Vested (in shares) (81,734) (65,981)
Forfeitures and cancellations (in shares) (50,529) (46,722)
Ending balance (in shares) 200,145 218,013
Weighted Average Fair value on grant date    
Beginning balance (in dollars per share) $ 27.48 $ 32.63
Issued, price on grant date (in dollars per share) 33.40 22.12
Vested during period (in dollars per share) 27.48 32.63
Forfeitures and cancellations (in dollars per share) 27.48 32.63
Ending balance (in dollars per share) $ 30.83 $ 27.48
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other than Options, Aggregate Fair Value [Roll Forward]    
Beginning balance, aggregate fair value $ 5,990 $ 7,270
Issued, aggregate fair value 3,820 2,390
Vested, aggregate fair value (2,250) (2,150)
Forfeitures and cancellations, aggregate fair value (1,390) (1,520)
Ending balance, aggregate fair value $ 6,170 $ 5,990
Term 3 years  
Vesting Year 1    
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other than Options, Aggregate Fair Value [Roll Forward]    
Annual installment amount 33.00%  
Vesting Year 2    
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other than Options, Aggregate Fair Value [Roll Forward]    
Annual installment amount 33.00%  
Vesting Year 3    
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other than Options, Aggregate Fair Value [Roll Forward]    
Annual installment amount 33.00%