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Shareholders' Equity (Details) - USD ($)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Jan. 31, 2021
Equity [Abstract]      
Shares repurchased (in shares) 106,744 985,795  
Average stock price (in dollars per share) $ 37.81 $ 29.11  
Cost of repurchase $ 4,000,000 $ 28,700,000  
Repurchase authorized amount     $ 20,000,000