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Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
Revenues (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Performance obligations satisfied or partially satisfied in previous periods	$ 6,400	$ 3,900
Contract asset	1,300		$ 3,800
Contract liability	0		0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Disaggregation of Revenue [Line Items]
Unfulfilled performance obligations			$ 3,700
Performance obligation expected duration			24 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Disaggregation of Revenue [Line Items]
Unfulfilled performance obligations	$ 3,300
Performance obligation expected duration	24 months