Total Assets by Reportable Segments (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
ASSETS
Total segment assets	$ 116,754	$ 114,437
Cash and cash equivalents	59,959	51,146	$ 60,980	$ 65,788
Income taxes receivable	2,510	5,906
Deferred tax assets		5,971
Prepaid expenses and other current assets	5,989	5,081
Assets of discontinued operations	0	631
Property, plant and equipment, net	40,550	40,088
Deferred tax assets	7,885	2,912
Other assets	12,673	12,134
Intangible assets, net	66,269	67,242
Goodwill	103,456	90,746
Total assets	$ 416,045	$ 396,294