XML 80 R49.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stockholders' Equity, Stock Option Activity (Details) - Stock Options [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Number of Shares [Abstract]      
Outstanding at beginning of period (in shares) 7,379    
Granted (in shares) 2,550    
Exercised (in shares) (1,674)    
Cancelled/forfeited/expired (in shares) (214)    
Outstanding at end of period (in shares) 8,041 7,379  
Exercisable at end of period (in shares) 3,940    
Weighted Average Exercise Price Per Share [Abstract]      
Outstanding at beginning of period (in dollars per share) $ 19.52    
Granted (in dollars per share) 61.02    
Exercised (in dollars per share) 14.07    
Cancelled/forfeited/expired (in dollars per share) 42.43    
Outstanding at end of period (in dollars per share) 33.21 $ 19.52  
Exercisable at end of period (in dollars per share) $ 16.43    
Average Remaining Contractual Term, Aggregate Intrinsic Value and Other [Abstract]      
Average remaining contractual term, outstanding at end of period 4 years 6 months 25 days    
Average remaining contractual term, exercisable at end of period 3 years 3 months 25 days    
Aggregate intrinsic value, outstanding at end of period $ 232,581    
Aggregate intrinsic value, exercisable at end of period $ 179,273    
Weighted average fair value of options granted (in dollars per share) $ 27.44 $ 17.54 $ 7.10
Intrinsic value of options exercised $ 84,700 $ 62,800 $ 69,600
Cash received from exercise of stock options $ 23,600 $ 22,400 $ 62,000
Weighted-average fair value of options exercised (in dollars per share) $ 64.69    
Unrecognized Compensation Expense [Abstract]      
Unrecognized compensation expense related to non-vested stock options $ 45,700    
Weighted average period for recognition 1 year 3 months 18 days