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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Earnings per share on a basic and diluted basis
Earnings per share on a basic and diluted basis are calculated as follows (in thousands, except per share amounts):
Three Months Ended
September 30,
Nine Months Ended
September 30,
 2021202020212020
Basic and Diluted Earnings:   
 
Net income$29,306 $27,074 $84,714 $52,581 
Basic weighted-average shares outstanding32,465 33,047 32,641 33,250 
Add:  Stock awards91 51 118 81 
Diluted weighted-average shares outstanding32,556 33,098 32,759 33,331 
Basic earnings per share:
Net income$0.90 $0.82 $2.60 $1.58 
Diluted earnings per share:
Net income$0.90 $0.82 $2.59 $1.58