XML 154 R120.htm IDEA: XBRL DOCUMENT v3.6.0.2
Share-Based Compensation - Schedule of Stock Options Activity (Details) - Stock options [member] - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Outstanding, beginning balance 616,832    
Granted 503,150 309,528 334,530
Exercised (5,724)    
Forfeited, canceled or expired (38,227)    
Outstanding, ending balance 1,076,031 616,832  
Exercisable 293,517    
Weighted average exercise price, beginning balance $ 73.47    
Weighted average exercise price, granted 58.83 $ 82.38 $ 64.59
Weighted average exercise price, exercised 64.59    
Weighted average exercise price, forfeited, canceled or expired 69.03    
Weighted average exercise price, ending balance 66.83 $ 73.47  
Weighted average exercise price, exercisable $ 70.57