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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2020
Earnings Per Share [Abstract]  
Number of Weighted Average Shares 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 June 30,Six Months Ended June 30,
2020201920202019
(In thousands)
Weighted average shares:
Basic shares229,225  227,577  229,094  227,219  
Equity-based compensation plans1,156  1,751  1,532  1,788  
Diluted shares230,381  229,328  230,626  229,007