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Earnings per Share - Repurchase Program (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Jun. 30, 2021
Dec. 31, 2019
Earnings Per Share          
Stock repurchased   $ 2,148 $ 906    
Repurchase Program          
Earnings Per Share          
Value of shares authorized for repurchase       $ 5,000 $ 5,000
Stock repurchased (in shares) 117,632        
Stock repurchased (in dollars per share) $ 18.26        
Stock repurchased $ 2,100        
Share repurchase pursuant   $ 5,000