Segment Reporting Revenue from External Customers by Products and Services (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue from External Customer [Line Items]
Revenue, Net	$ 437,963	$ 533,040	$ 825,145
U.S.
Revenue from External Customer [Line Items]
Revenue, Net	74,526	107,517	195,264
Americas
Revenue from External Customer [Line Items]
Revenue, Net	116,944	132,917	165,761
Asia Pacific
Revenue from External Customer [Line Items]
Revenue, Net	41,302	37,509	80,832
Europe, Middle East, Africa
Revenue from External Customer [Line Items]
Revenue, Net	$ 205,191	$ 255,097	$ 383,288