Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Sales	$ 100,204	$ 79,169	$ 82,110	$ 76,331	$ 92,953	$ 70,736	$ 60,564	$ 79,515	$ 337,814	$ 303,768	$ 381,765
Americas
Disaggregation of Revenue [Line Items]
Sales									140,633	128,826	165,756
EMEA
Disaggregation of Revenue [Line Items]
Sales									104,350	91,390	122,279
Other APAC
Disaggregation of Revenue [Line Items]
Sales									92,831	83,552	93,730
Product Sales
Disaggregation of Revenue [Line Items]
Sales									251,103	218,587	289,679
Product Sales | Products transferred to a customer at a point in time
Disaggregation of Revenue [Line Items]
Sales									234,188	205,849	277,841
Product Sales | Products transferred to a customer over time
Disaggregation of Revenue [Line Items]
Sales									16,915	12,738	11,838
Service Sales
Disaggregation of Revenue [Line Items]
Sales									86,711	85,181	92,086
Service Sales | Products transferred to a customer at a point in time
Disaggregation of Revenue [Line Items]
Sales									39,559	36,732	48,593
Service Sales | Products transferred to a customer over time
Disaggregation of Revenue [Line Items]
Sales									$ 47,152	$ 48,449	$ 43,493