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Weighted Average Shares Outstanding
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
Weighted Average Shares Outstanding Weighted Average Shares Outstanding
Earnings per share, basic and diluted, as presented in the condensed consolidated statements of comprehensive income, are calculated by dividing net income attributable to Knight-Swift by the respective weighted average common shares outstanding during the period.
The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding:
Quarter-to-Date September 30,Year-to-Date September 30,
 2020201920202019
(In thousands)
Basic weighted average common shares outstanding170,205 170,504 170,257 171,841 
Dilutive effect of equity awards823 786 778 683 
Diluted weighted average common shares outstanding171,028 171,290 171,035 172,524 
Anti-dilutive shares excluded from diluted earnings per share 1
408 187 829 
1    Shares were excluded from the dilutive-effect calculation because the outstanding awards' exercise prices were greater than the average market price of the Company's common stock for the periods presented.