Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Stock Based Compensation (Details)

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Summary of Significant Accounting Policies - Schedule of Stock Based Compensation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense $ 42,940 $ 36,349 $ 40,829
Cost of revenues      
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense 3,083 2,955 1,773
Sales and marketing      
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense 9,716 6,892 7,289
Research and development      
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense 10,521 8,120 9,035
General and administrative      
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense 19,620 18,382 22,732
Stock options      
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense 40,936 34,773 39,781
Employee stock purchases      
Summary Of Significant Accounting Policies [Line Items]      
Total stock-based compensation expense $ 2,004 $ 1,576 $ 1,048