Revenue Recogntion Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Contract With Customer, Liability [Line Items]
Balance at beginning of period	$ 202,392	$ 212,958	$ 205,030	$ 215,596
Recognized in revenue	(2,641)	(2,641)	(5,279)	(5,279)
Balance at end of period	$ 199,751	$ 210,317	$ 199,751	$ 210,317