Total Assets by Reportable Segments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Total segment assets	$ 167,791	$ 207,696
Cash and cash equivalents	125,054	78,944
Prepaid income taxes and income taxes receivable	3,203	5,905
Prepaid expenses and other current assets	8,125	11,967
Property, plant and equipment, net	78,676	77,556
Operating lease assets	34,444	35,180
Deferred tax assets	10,491	8,890
Other assets	2,894	2,713
Intangible assets, net	148,521	166,175
Goodwill	285,980	274,710
Total assets	$ 865,179	$ 869,736