Annual report pursuant to Section 13 and 15(d)

Earnings per Share

Earnings per Share
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings per share ("EPS") is presented on both a basic and diluted basis. Basic EPS is based on the weighted average number of common shares outstanding. Diluted EPS reflects the potential dilution that could occur if outstanding securities or other contracts to issue common stock were exercised or converted into common stock.
A reconciliation of the common shares used in the denominator for computing basic and diluted EPS is as follows:
Year Ended December 31,
(in thousands, except per share amounts)
2020 2019 2018
Weighted average common shares outstanding, used in computing basic earnings per share
66,376  67,837  69,614 
Effect of dilutive stock options and restricted stock units 396  656  787 
Weighted average common shares outstanding, used in computing diluted earnings per share
66,772  68,493  70,401 
Earnings per share of common stock attributable to Columbia Sportswear Company:
Basic $ 1.63  $ 4.87  $ 3.85 
Diluted $ 1.62  $ 4.83  $ 3.81 
Stock options and service-based restricted stock units, and performance-based restricted stock representing 1,122,935, 405,928 and 372,516 shares of common stock for the years ended December 31, 2020, 2019 and 2018, respectively, were outstanding but were excluded from the computation of diluted EPS because their effect would be anti-dilutive under the treasury stock method or because the shares were subject to performance conditions that had not been met.