Revenue Recognition - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Contract with Customer, Asset and Liability, Rollforward [Roll Forward]
Balance at beginning of period	$ 83
Cash received, excluding amounts recognized as revenue	315
Amounts recognized as revenue	(83)	$ (300)
Balance at end of period	$ 315