Business Segments - Assets by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Property, plant, and equipment, net	$ 82,933	$ 36,714
Total assets	622,676	649,638
United States
Segment Reporting Information [Line Items]
Property, plant, and equipment, net	31,100	21,800
North America
Segment Reporting Information [Line Items]
Total assets	399,288	401,415
International
Segment Reporting Information [Line Items]
Property, plant, and equipment, net	14,900	51,800
Other Geographical Region
Segment Reporting Information [Line Items]
Total assets	20,038	19,902
EMEA [Member]
Segment Reporting Information [Line Items]
Total assets	160,322	171,086
LATAM SEF [Member]
Segment Reporting Information [Line Items]
Total assets	$ 43,028	$ 57,235