Data by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from unaffiliated customers	$ 612,843	$ 629,710	$ 612,229
Property, plant and equipment, net	22,324	20,842	15,979
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from unaffiliated customers	463,608	489,825	479,970
Property, plant and equipment, net	16,828	15,344	10,974
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from unaffiliated customers	149,235	139,885	132,259
Property, plant and equipment, net	$ 5,496	$ 5,498	$ 5,005