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Restatement of Previously Issued Consolidated Financial Statements Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from continuing operations, before taxes |  |  |  |  | $ 52,794 | $ 13,702 | $ 13,923 | $ 46,670 | $ 32,228 | $ 17,778 | $ 7,803 | $ (17,639) | $ 229,087 | $ 127,089 | $ 40,170
Net loss from continuing operations | $ (8,604) | $ 36,364 | $ 29,383 | $ 61,586 | $ (25,120) | $ 785 | $ (4,692) | $ 32,336 | $ 15,804 | $ 8,858 | $ (7,409) | $ (19,738) | $ 118,729 | $ 3,309 | $ (2,485)

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