Condensed Consolidated Statements of Operations Parenthetical - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Cost of revenues | ||
| Stock-based Compensation Expense | $ 2,987 | $ 2,577 |
| Sales and marketing | ||
| Stock-based Compensation Expense | 20,015 | 18,092 |
| Research and development | ||
| Stock-based Compensation Expense | 25,157 | 23,515 |
| General and administrative | ||
| Stock-based Compensation Expense | $ 7,604 | $ 5,011 |