Basis of Presentation and Significant Accounting Policies - Contract Balances (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Changes in the Company's contract assets and contract liabilities
Contract asset, Beginning balance	$ 3,000
Contract asset, Additions		$ (2,500)
Contract asset, Deductions	3,000
Contract asset, Ending balance		2,500
Contract liabilities:
Contract liabilities (deferred revenue), Beginning balance	92,068	110,109
Contract liabilities (deferred revenue), Additions	5,704	25
Contract liabilities (deferred revenue), Deductions	(43,961)	(4,129)
Contract liabilities (deferred revenue), Ending balance	$ 53,811	$ 106,005