XML 22 R11.htm IDEA: XBRL DOCUMENT v3.21.2
Earnings Per Share
 9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The calculation of basic earnings per share is based on the weighted average number of common shares considered outstanding during the periods. The calculation of diluted earnings per share reflects the effect of all potentially dilutive securities (principally outstanding stock options and restricted stock grants). Securities that are anti-dilutive have been excluded and are not significant. The number of weighted average shares used in the calculation of basic earnings per share and diluted earnings per share was as follows:
Three Months Ended September 30,Nine Months Ended September 30,
2021202020212020
(In thousands)
Weighted average shares:
Basic shares231,171 229,576 230,811 229,254 
Equity-based compensation plans1,829 1,884 1,901 1,650 
Diluted shares233,000 231,460 232,712 230,904