Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Stock-based Compensation Expense Recognized in Income Statement (Details)

v3.6.0.2
Stockholders' Equity - Summary of Stock-based Compensation Expense Recognized in Income Statement (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Class Of Stock [Line Items]      
Stock-based compensation expense $ 7,294 $ 3,640 $ 1,451
Cost of Revenue      
Class Of Stock [Line Items]      
Stock-based compensation expense 639 433 172
Sales and Marketing      
Class Of Stock [Line Items]      
Stock-based compensation expense 1,142 1,009 443
General and Administrative      
Class Of Stock [Line Items]      
Stock-based compensation expense 4,737 1,767 658
Research and Development      
Class Of Stock [Line Items]      
Stock-based compensation expense $ 776 $ 431 $ 178