Revenue - Disaggregated by Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 145,899	$ 84,417
Revenue as a percentage	100.00%	100.00%
Product revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ 94,040	$ 51,956
Revenue as a percentage	65.00%	61.00%
Rental revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ 22,343	$ 12,489
Revenue as a percentage	15.00%	15.00%
Field service and other revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ 29,516	$ 19,972
Revenue as a percentage	20.00%	24.00%