Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Components of Income Tax Expense (Details)

v3.8.0.1
Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current taxes:      
Federal $ 0 $ 0 $ 0
State (32,579,000) (21,782,000) (15,916,000)
Foreign (202,000) (383,000) (825,000)
Total current taxes (32,781,000) (22,165,000) (16,741,000)
Deferred taxes:      
Federal (564,171,000) (304,179,000) (318,933,000)
State (19,349,000) (19,383,000) (46,566,000)
Total deferred taxes (583,520,000) (323,562,000) (365,499,000)
Total income tax expense $ (616,301,000) $ (345,727,000) $ (382,240,000)