v3.5.0.2
Stockholders' Equity - Summary of Activity Related to Stock Option Plans (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Shares available for grant, beginning balance 16,845,316
Options outstanding, number of shares, beginning balance 20,995,756
Shares available for grant, granted (2,721,013)
Options outstanding, number of shares, exercised (1,204,583)
Options outstanding, number of shares, ending balance 22,512,186
Shares available for grant, ending balance 14,124,303
Options vested and exercisable, number of shares, ending balance 22,512,186
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]  
Options outstanding, weighted-average exercise price, beginning balance (dollars per share) | $ / shares $ 32.39
Options outstanding, weighted-average exercise price, granted (dollars per share) | $ / shares 98.45
Options outstanding, weighted-average exercise price, exercised (dollars per share) | $ / shares 9.59
Options outstanding, weighted-average exercise price, ending balance (dollars per share) | $ / shares 41.59
Options outstanding, weighted-average exercise price, vested and exercisable (dollars per share) | $ / shares $ 41.59
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]  
Weighted-average remaining contractual term, ending balance (in years) 6 years 2 months 12 days
Weighted-average remaining contractual term, vested and exercisable (in years) 6 years 2 months 12 days
Aggregate intrinsic value, ending balance | $ $ 1,300,444
Aggregate intrinsic value, vested and exercisable | $ $ 1,300,444