XML 80 R62.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stock-Based Compensation - Company's Options Outstanding (Detail)
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding - Number of Shares 4,166,962
Options Exercisable - Number of Shares 2,108,076
Exercise Price Range 0.00 - 1.92 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 0.00
Exercise Price, Maximum | $ / shares $ 1.92
Options Outstanding - Number of Shares 645,113
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 6 years 3 months 4 days
Options Exercisable - Number of Shares 589,799
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 6 years 2 months 9 days
Exercise Price Range 2.24 - 3.84 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 2.24
Exercise Price, Maximum | $ / shares $ 3.84
Options Outstanding - Number of Shares 317,814
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 4 years 3 months 11 days
Options Exercisable - Number of Shares 317,796
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 4 years 3 months 11 days
Exercise Price Range 5.12 - 6.72 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 5.12
Exercise Price, Maximum | $ / shares $ 6.72
Options Outstanding - Number of Shares 371,802
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 6 years 11 months 23 days
Options Exercisable - Number of Shares 277,781
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 6 years 11 months 19 days
Exercise Price Range 8.96 - 10.94 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 8.96
Exercise Price, Maximum | $ / shares $ 10.94
Options Outstanding - Number of Shares 273,276
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 8 years 3 months 26 days
Options Exercisable - Number of Shares 113,223
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 7 years 9 months 26 days
Exercise Price Range 11.14 - 12.56 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 11.14
Exercise Price, Maximum | $ / shares $ 12.56
Options Outstanding - Number of Shares 283,315
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 8 years 5 months 27 days
Options Exercisable - Number of Shares 87,449
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 8 years 1 month 2 days
Exercise Price Range 12.77 - 13.93 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 12.77
Exercise Price, Maximum | $ / shares $ 13.93
Options Outstanding - Number of Shares 972,726
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 9 years 1 month 10 days
Options Exercisable - Number of Shares 216,977
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 9 years 1 month 2 days
Exercise Price Range 14.04 - 16.22 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 14.04
Exercise Price, Maximum | $ / shares $ 16.22
Options Outstanding - Number of Shares 414,690
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 9 years 2 months 27 days
Options Exercisable - Number of Shares 64,635
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 8 years 5 months 12 days
Exercise Price Range 17.24 - 20.65 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Minimum | $ / shares $ 17.24
Exercise Price, Maximum | $ / shares $ 20.65
Options Outstanding - Number of Shares 888,226
Options Outstanding -Weighted- Average Remaining Contractual Life in Years 8 years 1 month 6 days
Options Exercisable - Number of Shares 440,416
Options Exercisable - Weighted- Average Remaining Contractual Life in Years 8 years 1 month 6 days