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Share-Based Compensation - Stock Option Activity (Details) - Stock options - 2021 Equity Incentive Plan - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Shares        
Options outstanding, beginning of period (in shares) 824,300 1,090,300 1,529,800  
Granted (in shares) 0 0 0  
Exercised (in shares) (93,750) (266,000) (426,150)  
Forfeited (in shares) 0 0 (13,350)  
Options outstanding, end of period (in shares) 730,550 824,300 1,090,300 1,529,800
Options exercisable at period end (in shares) 725,550      
Weighted-Average Exercise Price        
Options outstanding, beginning balance (in dollars per share) $ 17.89 $ 17.68 $ 17.40  
Granted (in dollars per share) 0 0 0  
Exercised (in dollars per share) 17.26 17.01 16.55  
Forfeited (in dollars per share) 0 0 21.89  
Options outstanding, ending balance (in dollars per share) 17.97 $ 17.89 $ 17.68 $ 17.40
Options exercisable at period end (in dollars per share) $ 17.96      
Options outstanding, weighted average contractual life 3 years 3 years 8 months 12 days 4 years 6 months 5 years 3 months 18 days
Options exercisable at period end, weighted average contractual life 3 years      
Aggregate Intrinsic Value        
Options outstanding, intrinsic value $ 8,889 $ 21,200 $ 13,436 $ 13,479
Exercised, intrinsic value 1,782 $ 5,625 $ 4,911  
Options exercisable at period end, intrinsic value $ 8,841