XML 16 R4.htm IDEA: XBRL DOCUMENT v3.21.1
Unaudited Condensed Consolidated Statement Of Shareholders' Equity - USD ($)
$ in Millions
Total
Cumulative Effect, Period of Adoption, Adjustment
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment
Treasury Stock [Member]
BALANCE at period start (in shares) at Dec. 31, 2019     102,562,149        
BALANCE at period start at Dec. 31, 2019 $ 3,162.1 $ (0.5) $ 1.0 $ 35.9 $ 3,688.3 $ (0.5) $ (563.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income (loss) (232.3)       (232.3)    
Repurchases of common stock (80.0)           (80.0)
Stock-based compensation expense 4.5     4.5      
Shares awarded under stock-based compensation plans, net of shares withheld for taxes (6.9)     (21.7)     14.8
BALANCE at period end (in shares) at Mar. 31, 2020     102,562,149        
BALANCE at period end at Mar. 31, 2020 2,846.9   $ 1.0 18.7 3,455.5   (628.3)
BALANCE at period start (in shares) at Dec. 31, 2020     102,562,149        
BALANCE at period start at Dec. 31, 2020 3,235.7   $ 1.0 53.1 4,069.4   (887.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income (loss) 239.4       239.4    
Repurchases of common stock (306.1)           (306.1)
Stock-based compensation expense 20.8     20.8      
Shares awarded under stock-based compensation plans, net of shares withheld for taxes 4.1     (32.9)     37.0
BALANCE at period end (in shares) at Mar. 31, 2021     102,562,149        
BALANCE at period end at Mar. 31, 2021 $ 3,193.9   $ 1.0 $ 41.0 $ 4,308.8   $ (1,156.9)