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Earnings Per Common Share
3 Months Ended
Mar. 31, 2021
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 March 31,
20212020
(in thousands)
Weighted average number of common shares outstanding - basic75,003 74,658 
Effect of dilutive securities 1
221 109 
Weighted average number of common shares outstanding - diluted75,224 74,767 
1.Certain outstanding equity awards are anti-dilutive and therefore 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 March 31,
20212020
(in thousands)
Anti-dilutive 1,694 2,090