XML 70 R59.htm IDEA: XBRL DOCUMENT v3.10.0.1
STOCK-BASED COMPENSATION - Equity Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Stock options            
Stock-based compensation            
Weighted-average grant-date fair value of options granted (in dollars per share) $ 22.80     $ 20.61 $ 22.51 $ 18.04
Total intrinsic value of options exercised $ 19.2     $ 12.5 $ 52.1 $ 53.4
Cash received from option exercises 10.9     $ 7.7 24.5 $ 26.8
Total unrecognized compensation expense related to non-vested shares granted to employees $ 107.9       $ 107.9  
Cost expected to be recognized over a weighted-average period         2 years 9 months 18 days  
Stock units expected to vest (in shares) 18,061       18,061  
Restricted stock units            
Stock-based compensation            
Total unrecognized compensation expense related to non-vested shares granted to employees $ 19.0       $ 19.0  
Cost expected to be recognized over a weighted-average period         1 year 9 months 18 days  
Stock units expected to vest (in shares) 500       500  
Number of Shares            
Non-vested at the beginning of the period (in shares)     530   530  
Granted (in shares) 1 48 221 0    
Vested (in shares)         (263)  
Forfeited/cancelled (in shares)         (7)  
Non-vested at the end of the period (in shares) 530       530  
Weighted Average Grant-Date Fair Value            
Non-vested at the beginning of the period (in dollars per share)     $ 45.09   $ 45.09  
Granted (in dollars per share) $ 58.72 $ 52.31 $ 58.75   57.59 $ 46.65
Vested (in dollars per share)         45.36  
Forfeited/cancelled (in dollars per share)         33.60  
Non-vested at the end of the period (in dollars per share) $ 51.48       $ 51.48