Financial Statements Details - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Change in Contract with Customer, Asset [Roll Forward]
Contract assets, beginning balance			$ 25,565
Contract assets, ending balance	$ 13,648		13,648
Change in Contract with Customer, Liability [Roll Forward]
Contract liabilities, beginning balance	64,325	$ 37,314	61,050	$ 32,595
Less: Revenue recognized from beginning balance	(5,735)	(3,552)	(11,722)	(6,766)
Less: Beginning balance reclassified to deferred revenue	(2,757)	(1,593)	(2,226)	(1,205)
Add: Contract liabilities recognized	11,435	9,857	20,166	17,402
Contract liabilities, ending balance	67,268	$ 42,026	67,268	$ 42,026
Other Current Liabilities
Change in Contract with Customer, Liability [Roll Forward]
Contract liabilities, beginning balance			23,400
Contract liabilities, ending balance	$ 28,600		$ 28,600