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Net Income per Common Share
 9 Months Ended
Sep. 26, 2020
Earnings Per Share [Abstract]  
Net Income per Common Share Net Income per Common Share
The components of basic and diluted net income per share were as follows (in thousands, except per share amounts):
Three Months EndedNine Months Ended
September 26,
2020		September 28,
2019		September 26,
2020		September 28,
2019
Net income$51,320 $28,054 $77,830 $57,752 
Reconciliation of weighted-average shares outstanding:
Basic weighted-average shares outstanding
27,973 29,085 27,918 29,859 
Dilutive effect of stock-based awards
661 711 642 829 
Diluted weighted-average shares outstanding
28,634 29,796 28,560 30,688 
Net income per share – basic$1.83 $0.96 $2.79 $1.93 
Net income per share – diluted$1.79 $0.94 $2.73 $1.88 

For the three and nine months ended September 26, 2020 and September 28, 2019, anti-dilutive stock-based awards excluded from the diluted net income per share calculations were immaterial.