Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Income Taxes Computed to Income Tax Benefit (Details)

v3.6.0.2
Income Taxes - Reconciliation of Income Taxes Computed to Income Tax Benefit (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Income tax (benefit) at the federal statutory rate $ (102,339) $ (436,696) $ (5,642)
Share-based compensation 4,920 2,940  
State income taxes (755) (2,343) 263
Valuation allowance 52,915 232,925  
Debt restructuring cost 1,463    
Other 420 190 920
Total income tax( benefit) $ (43,376) $ (202,984) $ (4,459)
Income tax expense (benefit) at the federal statutory rate, tax rate 35.00% 35.00% 35.00%
Share-based compensation, tax rate (1.70%) (0.20%)  
State income taxes, tax rate 0.20% 0.20% (1.60%)
Valuation allowance, tax rate (18.10%) (18.70%)  
Debt restructuring cost (0.50%)    
Other, tax rate (0.10%)   (5.70%)
Effective income tax rate, total 14.80% 16.30% 27.70%