Deferred Revenue - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Revenue from External Customer [Line Items]
Total deferred revenue, current	$ 563,190		$ 603,944
Total deferred revenue, non-current	329,656		370,623
Total deferred revenue	892,846	$ 919,856	974,567	$ 912,749	$ 906,190	$ 934,828
Product, subscription and support
Revenue from External Customer [Line Items]
Total deferred revenue, current	478,823		508,580
Total deferred revenue, non-current	328,965		369,589
Professional services
Revenue from External Customer [Line Items]
Total deferred revenue, current	84,367		95,364
Total deferred revenue, non-current	$ 691		$ 1,034