Geographic Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Revenue from External Customers by Geographic Areas

Total sales to external customers is based upon the geographic location of the customer.

	For the Years Ended December 31,
	2019		2018		2017
Total sales to external customers
United States	$	151,646	$	156,242	$	141,595
Americas-Other	14,110		15,086		13,531
Germany	52,083		53,251		49,860
Europe-Other	70,196		74,010		65,201
Japan	33,361		37,607		35,270
China	32,934		36,130		30,405
Asia-Other	27,435		31,301		25,055
	$	381,765	$	403,627	$	360,917

Schedule of Long Lived Assets Attributed to Geographic Area

Long-lived assets consist primarily of property, plant, and equipment, goodwill, and intangible assets, and are attributed to the geographic area in which they are located or originated, as applicable.

	As of December 31,
	2019		2018		2017
Long-Lived Assets
United States	$	45,225	$	61,557	$	54,703
Americas-Other	10,889		10,702		13,834
Germany	26,295		30,154		26,611
Europe-Other	4,984		24,935		9,124
Japan	1,423		1,039		558
Asia-Other	2,313		2,358		2,246
	$	91,129	$	130,745	$	107,076