Revenue Recognition - Revenues From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation Of Revenue [Line Items]
Revenues	$ 73,141	$ 73,250
Western Hemisphere | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	48,246	48,420
Eastern Hemisphere | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	15,045	9,441
Asia Pacific | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	9,850	15,389
Products
Disaggregation Of Revenue [Line Items]
Revenues	55,642	55,583
Products | Western Hemisphere | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	36,661	37,916
Products | Eastern Hemisphere | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	11,783	6,722
Products | Asia Pacific | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	7,198	10,945
Services
Disaggregation Of Revenue [Line Items]
Revenues	17,499	17,667
Services | Western Hemisphere | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	11,585	10,504
Services | Eastern Hemisphere | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	3,262	2,719
Services | Asia Pacific | Operating Segments
Disaggregation Of Revenue [Line Items]
Revenues	$ 2,652	$ 4,444