Business Segment and Foreign Operations (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of Net Sales to External Customers by Geographic Area

Our net sales to external customers by geographic area were as follows:

	Year Ended December 31,
(In thousands)	2017		2016		2015
United States	$	345,838	$	338,338	$	287,678
Asia (excluding PRC)	104,668		89,527		109,960
People’s Republic of China	83,036		77,224		74,475
Europe	79,183		74,113		65,579
Latin America	54,113		47,286		38,985
Other	28,952		24,883		26,156
Total net sales	$	695,790	$	651,371	$	602,833

Schedule of Long-lived Assets

Long-lived tangible assets by geographic area were as follows:

	December 31,
(In thousands)	2017		2016
United States	$	14,674	$	11,948
People's Republic of China	96,984		94,113
All other countries	3,870		4,186
Total long-lived tangible assets	$	115,528	$	110,247