Quarterly report pursuant to Section 13 or 15(d)

Stock Repurchases (Details)

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Stock Repurchases (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Feb. 23, 2021
Equity [Abstract]            
Stock repurchase program, authorized amount           $ 100,000,000
Repurchase of common stock (in shares) 24,200     219,100    
Average cost per share (in dollars per share) $ 41.6746     $ 37.1564    
Payments for repurchase of common stock $ 1,000,000     $ 8,145,000 $ 0  
Stock repurchased during period 1,008,000 $ 4,464,000 $ 2,673,000 8,100,000    
Remaining authorized repurchase amount $ 91,900,000     $ 91,900,000