XML 124 R89.htm IDEA: XBRL DOCUMENT v3.20.4
Earnings per share ("EPS") (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Earnings per share    
Basic EPS - Net income (loss) $ 326.2 $ 344.1
Basic EPS - (in shares) 190,300,000 187,700,000
Basic EPS (in dollars per share) $ 1.71 $ 1.83
Effect of dilutive securities - (in shares) 400,000 300,000
Diluted EPS - Net income (loss) $ 326.2 $ 344.1
Diluted EPS - (in shares) 190,700,000 188,000,000
Diluted EPS (in dollars per share) $ 1.71 $ 1.83
Securities excluded from computation of diluted EPS (in shares)   6,034
Stock options    
Earnings per share    
Securities excluded from computation of diluted EPS (in shares) 3,534 1,143
Restricted shares    
Earnings per share    
Securities excluded from computation of diluted EPS (in shares) 66,996 65,972