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Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Current |  |  |
U.S. federal | $ 0 | $ (624) | $ 27,521
State | (254) | 226 | 1,353
Foreign | (241) | (308) | 0
Total Current | (495) | (706) | 28,874
Deferred |  |  |
U.S. federal | 5,403 | 3,702 | (7,260)
State | (280) | 107 | (357)
Foreign | (6,079) | 2,360 | 1,633
Total Deferred | (956) | 6,169 | (5,984)
Changes in valuation allowance | (3,613) | (4,604) | (13,289)
Income tax (expense) benefit | $ (5,064) | $ 859 | $ 9,601

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- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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