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Income Taxes - Schedule of Income before income tax, Domestic and Foreign (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax [Line Items] |  |  |
Loss from continuing operations before income taxes, equity in affiliates | $ (80,407) | $ 87,078 | $ (49,716)
Domestic Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Loss from continuing operations before income taxes, equity in affiliates | (68,698) | 48,053 | (16,661)
Foreign Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Loss from continuing operations before income taxes, equity in affiliates | $ (11,709) | $ 39,025 | $ (33,055)

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- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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