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Earnings Per Common Share
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
Earnings Per Common Share
Note 14—Earnings Per Common Share

Basic and diluted earnings per common share are computed by dividing net income by the weighted-average number of basic and diluted common shares outstanding, respectively. The weighted-average number of diluted common shares includes the impact of dilutive securities, including outstanding stock options and unvested restricted stock and restricted stock units. The table below reconciles the weighted-average basic and diluted common shares outstanding:
Three Months Ended September 30,Nine Months Ended September 30,
2020201920202019
(in thousands)
Weighted average number of common shares outstanding - basic74,700 74,387 74,684 74,347 
Effect of dilutive securities 1
77 120 84 268 
Weighted average number of common shares outstanding - diluted74,777 74,507 74,768 74,615 
1.Certain outstanding equity awards are anti-dilutive and therefore were excluded from the calculation of the weighted average number of diluted common shares outstanding.

Anti-dilutive outstanding equity awards under share-based compensation plans were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
2020201920202019
(in thousands)
Anti-dilutive 2,244 2,028 2,145 1,512