XML 91 R72.htm IDEA: XBRL DOCUMENT v3.3.1.900
Capital Stock - Additional Information Regarding Company's Stock Options Outstanding and Exercisable (Detail)
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Stock Options Outstanding | shares 1,949,089
Weighted Average Remaining Contractual Life (Years) 8 years 1 month 2 days
Weighted Average Exercise Price per Share $ 39.27
Shares Subject to Stock Options | shares 609,137
Weighted Average Exercise Price per Share $ 29.57
Exercise price range one [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 0.02
Company's stock options outstanding and exercisable, Upper Range $ 10.70
Number of Stock Options Outstanding | shares 157,918
Weighted Average Remaining Contractual Life (Years) 4 years 10 months 10 days
Weighted Average Exercise Price per Share $ 6.66
Shares Subject to Stock Options | shares 148,074
Weighted Average Exercise Price per Share $ 7.07
Exercise price range two [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 10.71
Company's stock options outstanding and exercisable, Upper Range $ 29.10
Number of Stock Options Outstanding | shares 242,340
Weighted Average Remaining Contractual Life (Years) 7 years 7 months 28 days
Weighted Average Exercise Price per Share $ 25.34
Shares Subject to Stock Options | shares 118,092
Weighted Average Exercise Price per Share $ 24.95
Exercise price range three [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 29.11
Company's stock options outstanding and exercisable, Upper Range $ 32.54
Number of Stock Options Outstanding | shares 269,777
Weighted Average Remaining Contractual Life (Years) 8 years 6 months 4 days
Weighted Average Exercise Price per Share $ 29.43
Shares Subject to Stock Options | shares 72,161
Weighted Average Exercise Price per Share $ 29.66
Exercise price range four [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 32.55
Company's stock options outstanding and exercisable, Upper Range $ 34.55
Number of Stock Options Outstanding | shares 206,863
Weighted Average Remaining Contractual Life (Years) 7 years 3 months 4 days
Weighted Average Exercise Price per Share $ 33.72
Shares Subject to Stock Options | shares 99,746
Weighted Average Exercise Price per Share $ 33.62
Exercise price range five [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 34.56
Company's stock options outstanding and exercisable, Upper Range $ 54.48
Number of Stock Options Outstanding | shares 581,938
Weighted Average Remaining Contractual Life (Years) 8 years 9 months 15 days
Weighted Average Exercise Price per Share $ 43.19
Shares Subject to Stock Options | shares 74,298
Weighted Average Exercise Price per Share $ 41.88
Exercise price range six [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 54.49
Company's stock options outstanding and exercisable, Upper Range $ 61.55
Number of Stock Options Outstanding | shares 275,131
Weighted Average Remaining Contractual Life (Years) 8 years 1 month 21 days
Weighted Average Exercise Price per Share $ 54.98
Shares Subject to Stock Options | shares 82,179
Weighted Average Exercise Price per Share $ 54.76
Exercise price range seven [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 61.56
Company's stock options outstanding and exercisable, Upper Range $ 69.55
Number of Stock Options Outstanding | shares 184,232
Weighted Average Remaining Contractual Life (Years) 9 years 2 months 16 days
Weighted Average Exercise Price per Share $ 64.87
Shares Subject to Stock Options | shares 14,587
Weighted Average Exercise Price per Share $ 62.81
Exercise price range eight [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Company's stock options outstanding and exercisable, Lower Range 69.56
Company's stock options outstanding and exercisable, Upper Range $ 77.00
Number of Stock Options Outstanding | shares 30,890
Weighted Average Remaining Contractual Life (Years) 9 years 9 months 15 days
Weighted Average Exercise Price per Share $ 71.72
Shares Subject to Stock Options | shares 0
Weighted Average Exercise Price per Share $ 0