Contract Balances (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Jan. 01, 2019
Change in Contract with Customer, Asset and Liability [Abstract]
Revenue recognized that was included in the contract liability balance at the beginning of the period	$ (31,561)	$ (25,977)
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Contract assets balance	20,070		$ 14,894	$ 9,330
Contract liabilities - current	113,179		44,001	36,461
Contract liabilities - non-current	$ 13,660		$ 9,121	$ 9,382