XML 73 R63.htm IDEA: XBRL DOCUMENT v3.19.1
Share-Based Compensation and Capital Stock - Summary of Change in Stock-Based Award Activity (Details)
3 Months Ended
Mar. 31, 2019
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Outstanding, beginning balance (in shares) | shares 1,186,180
Granted (in shares) | shares 141,827
Exercised/Vested (in shares) | shares (205,030)
Expired (in shares) | shares 0
Forfeited (in shares) | shares 0
Outstanding, ending balance (in shares) | shares 1,122,977
Options exercisable, ending balance (in shares) | shares 752,844
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]  
Beginning balance - weighted average exercise price (in dollars per share) | $ / shares $ 54.13
Granted - Weighted average exercise price (in dollars per share) | $ / shares 81.15
Exercised/Vested - Weighted average exercise price (in dollars per share) | $ / shares 44.89
Expired - Weighted average exercise price (in dollars per share) | $ / shares 0.00
Forfeited - Weighted average exercise price (in dollars per share) | $ / shares 0.00
Ending balance - weighted average exercise price (in dollars per share) | $ / shares 59.23
Options Exercisable, ending balance - Weighted average exercise price (in dollars per share) | $ / shares $ 53.62
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Roll Forward]  
Weighted Average Remaining Contractual Term - Outstanding, ending balance 3 years 11 months
Weighted Average Remaining Contractual Term - Options Exercisable, ending balance 3 years 1 month
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Performance-Based Leveraging - Weighted average grant date fair value (in dollars per share) | $ / shares $ 51.49
Restricted stock  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]  
Outstanding, beginning balance (in shares) | shares 303,765
Granted (in shares) | shares 136,350
Exercised/Vested (in shares) | shares (65,538)
Forfeited (in shares) | shares (6,034)
Outstanding, ending balance (in shares) | shares 368,543
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Beginning balance - weighted average grant date fair value (in dollars per share) | $ / shares $ 65.06
Granted - Weighted average grant date fair value (in dollars per share) | $ / shares 81.04
Exercised/Vested - Weighted average grant date fair value (in dollars per share) | $ / shares 62.67
Forfeited - Weighted average grant date fair value (in dollars per share) | $ / shares 65.77
Ending balance - weighted average grant date fair value (in dollars per share) | $ / shares $ 71.38
Performance Vested Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]  
Outstanding, beginning balance (in shares) | shares 336,820
Granted (in shares) | shares 83,934
Performance-Based Leveraging (in shares) | shares 1,583
Exercised/Vested (in shares) | shares (73,199)
Forfeited (in shares) | shares (2,736)
Outstanding, ending balance (in shares) | shares 346,402
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Beginning balance - weighted average grant date fair value (in dollars per share) | $ / shares $ 63.28
Granted - Weighted average grant date fair value (in dollars per share) | $ / shares 81.15
Exercised/Vested - Weighted average grant date fair value (in dollars per share) | $ / shares 50.67
Forfeited - Weighted average grant date fair value (in dollars per share) | $ / shares 70.18
Ending balance - weighted average grant date fair value (in dollars per share) | $ / shares $ 70.16