Segment Information Revenues and Operating Net Assets by Geographical Areas (Details) - Continuing Operations [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 794,020	$ 863,980	$ 887,300
Long-lived Assets	708,160	833,920	934,970	[1]
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	65,490	70,760	75,350
Long-lived Assets	45,050	50,930	58,250	[1]
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	32,230	30,280	24,660
Long-lived Assets	51,060	49,830	59,450	[1]
Other Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	13,620	17,000	23,370
Long-lived Assets	7,800	5,840	13,190	[1]
Reportable Geographical Components [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	111,340	118,040	123,380
Long-lived Assets	103,910	106,600	130,890	[1]
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	682,680	745,940	763,920
Long-lived Assets	$ 604,250	$ 727,320	$ 804,080	[1]

[1] Excludes discontinued operations. See Note 5, "Discontinued Operations."