Revenue - Contract Assets and Deferred Revenue Schedule (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Capitalized Contract Cost [Line Items]
Contract assets	[1]	$ 9,800	$ 13,969
Prepaid Expenses and Other Current Assets [Member]
Capitalized Contract Cost [Line Items]
Contract assets		9,800	13,969
Other Noncurrent Liabilities [Member]
Capitalized Contract Cost [Line Items]
Deferred revenue		$ 63,533	$ 43,450

[1] Contract assets reflect the satisfied performance obligations for which the Company does not yet have an unconditional right to consideration.