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Segment Reporting Revenue from External Customers by Products and Services (Details) - USD ($) $ in Thousands | 12 Months Ended
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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

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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