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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Income Tax Disclosure [Abstract] |  |  |
Income (loss) from continuing operations before income taxes, equity in non-consolidated affiliates and noncontrolling interest | $ (49,716) | $ (17,416) | $ 15,109
Statutory income tax rate | 26.50% | 26.50% | 26.50%
Tax expense (benefit) using statutory income tax rate | $ (13,175) | $ (4,615) | $ 4,004
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | (94) | 3,524 | 1,459
Non-deductible stock-based compensation | 4,060 | 3,354 | 1,982
Other non-deductible expense | (1,170) | (2,102) | 2,151
Change to valuation allowance on items affecting taxable income | 8,707 | 5,468 | 2,003
Effect of the difference in federal and statutory rates | (4,579) | 1,906 | 2,222
Noncontrolling interests | (1,287) | (2,399) | (1,826)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | 237 | 528 | 427
Income tax provision (benefit) | $ (7,301) | $ 5,664 | $ 12,422
Effective income tax rate | 14.70% | (32.50%) | 82.20%

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 + Details
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