INCOME TAXES - Reconciliation of Income Tax Computed at the U.S. Federal Statutory Rates to Income Tax Benefit (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Amount | |||||||||||
| Income tax benefit (expense) at statutory rates | $ 317,250 | $ (82,382) | $ 3,070 | ||||||||
| State income taxes, net of federal tax effect | 23,378 | (4,602) | 2,238 | ||||||||
| Foreign income taxes | (19,409) | (23,555) | (18,686) | ||||||||
| Nondeductible items | (646) | (687) | (754) | ||||||||
| Changes in valuation allowance and other estimates | (148,389) | 34,597 | (33,684) | ||||||||
| U.S. tax reform | 228,010 | 0 | 0 | ||||||||
| U.S. rate differential on impairment of related party note | (115,755) | 0 | 0 | ||||||||
| Other, net | (4,221) | (870) | (2,127) | ||||||||
| Income tax benefit (expense) | $ 293,118 | $ (16,347) | $ (18,390) | $ 21,837 | $ (39,920) | $ 3,619 | $ 21,719 | $ (62,917) | $ 280,218 | $ (77,499) | $ (49,943) |
| Percent | |||||||||||
| Income tax benefit (expense) at statutory rates | 35.00% | 35.00% | 35.00% | ||||||||
| State income taxes, net of federal tax effect | 2.60% | 2.00% | 25.50% | ||||||||
| Foreign income taxes | (2.10%) | 9.90% | (213.00%) | ||||||||
| Nondeductible items | (0.10%) | 0.30% | (8.60%) | ||||||||
| Changes in valuation allowance and other estimates | (16.40%) | (14.70%) | (384.00%) | ||||||||
| U.S. tax reform | 25.20% | 0.00% | 0.00% | ||||||||
| U.S. rate differential on impairment of related party note | (12.80%) | 0.00% | 0.00% | ||||||||
| Other, net | (0.50%) | 0.40% | (24.20%) | ||||||||
| Income tax benefit (expense) | 30.90% | 32.90% | (569.30%) | ||||||||