Revenue Recognition - Summary of Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 128,427	$ 103,075
Transportation
Disaggregation of Revenue [Line Items]
Revenues	75,854	61,534
Industrial
Disaggregation of Revenue [Line Items]
Revenues	26,625	20,843
Medical
Disaggregation of Revenue [Line Items]
Revenues	11,276	9,370
Aerospace and Defense
Disaggregation of Revenue [Line Items]
Revenues	11,670	9,005
Telecom & IT
Disaggregation of Revenue [Line Items]
Revenues	$ 3,002	$ 2,323