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Earnings Per Share
 9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share amounts):

Three Months EndedNine Months Ended
September 30,September 30,
 2021202020212020
Numerator:    
Net income$33,396 $15,062 $95,538 $73,853 
Denominator:    
Weighted-average common shares for calculating basic earnings per share40,453 41,440 40,745 41,597 
Effect of dilutive securities:    
Stock options and restricted stock unit awards63 96 44 94 
Weighted-average common shares for calculating diluted earnings per share40,516 41,536 40,789 41,691 
Earnings per share:    
Basic$0.83 $0.36 $2.34 $1.78 
Diluted$0.82 $0.36 $2.34 $1.77