XML 97 R78.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Compensation - Stock Options Outstanding Roll Forward (Detail) - Equity Option [Member] - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Outstanding at December 31, 2017 2,039    
Granted 321 389 324
Exercised (433)    
Canceled (137)    
Outstanding at December 31, 2018 1,790 2,039  
Weighted-average exercise price of options outstanding at beginning of period $ 124.41    
Weighted-average exercise price of options granted 196.78 $ 170.24 $ 135.02
Weighted-average exercise price of options exercised 102.92    
Weighted average exercise price of options canceled 125.93    
Weighted-average exercise price of options outstanding at end of period 142.47 124.41  
Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted-average exercise price of options outstanding at beginning of period 38.09    
Weighted-average exercise price of options granted 188.26    
Weighted-average exercise price of options exercised 38.09    
Weighted average exercise price of options canceled 98.21    
Weighted-average exercise price of options outstanding at end of period 38.09 38.09  
Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted-average exercise price of options outstanding at beginning of period 194.26    
Weighted-average exercise price of options granted 208.47    
Weighted-average exercise price of options exercised 154.33    
Weighted average exercise price of options canceled 154.33    
Weighted-average exercise price of options outstanding at end of period $ 208.47 $ 194.26