Revenue Recognition - Changes in Balance of Deferred Revenues (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Revenue Recognition
Balance	$ 72,930
Increase in deferred revenues	7,915
Reclasses from deferred revenues to other short-term liabilities	(10,080)
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	(37,784)
Revenue recognized from performance obligations satisfied within the same period	(4,259)
Balance	$ 28,722