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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2019
Income Tax Disclosure [Abstract] |
Income (Loss) Before Income Taxes and Equity Earnings | For financial reporting purposes, income (loss) before income taxes and equity earnings for the years ended December 31, 2019, 2018 and 2017 were as follows (in thousands):
|  | 2019 |  | 2018 |  | 2017
U.S. |  | $ | (13,317 | ) |  | $ | 12,633 |  |  | $ | (148,248 | )
Foreign |  | (1,430 | ) |  | 1,559 |  |  | (4,457 | )
Total |  | $ | (14,747 | ) |  | $ | 14,192 |  |  | $ | (152,705 | )
Schedule of Components of Income Tax Expense (Benefit) | The components of income tax expense (benefit) for the years ended December 31, 2019, 2018 and 2017 were as follows (in thousands):
|  | 2019 |  | 2018 |  | 2017
Current: |  |  |  |  |  |
Federal |  | $ | 2,935 |  |  | $ | 924 |  |  | $ | — |
State |  | (69 | ) |  | 219 |  |  | 7 |
Foreign |  | 937 |  |  | 38 |  |  | (3,530 | )
Total current |  | 3,803 |  |  | 1,181 |  |  | (3,523 | )
Deferred: |  |  |  |  |  |
Federal |  | (4,266 | ) |  | 2,154 |  |  | (121,359 | )
State |  | 70 |  |  | (390 | ) |  | 1,923 |
Foreign |  | (338 | ) |  | (5 | ) |  | 294 |
Total deferred |  | (4,534 | ) |  | 1,759 |  |  | (119,142 | )
Income tax (benefit) expense |  | $ | (731 | ) |  | $ | 2,940 |  |  | $ | (122,665 | )
Schedule of Effective Income Tax Rate Reconciliation | The following table reconciles the difference between the statutory federal income tax rate for the Company and the effective income tax rate for the years ended December 31, 2019, 2018 and 2017:
Provision (benefit): |  | 2019 |  | 2018 |  | 2017
Statutory rate |  | 21.0 | % |  | 21.0 | % |  | 35.0 | %
State taxes, net of federal tax benefit |  | 10.9 | % |  | (1.9 | )% |  | 5.3 | %
State valuation allowance |  | (11.0 | )% |  | 0.4 | % |  | (6.6 | )%
Sale of investment in JV |  | (8.7 | )% |  | — | % |  | — | %
Foreign tax credit valuation allowance |  | (4.2 | )% |  | — | % |  | — | %
Foreign valuation allowance |  | 0.3 | % |  | (2.3 | )% |  | (1.0 | )%
Brazilian PERT Program |  | — | % |  | — | % |  | 2.2 | %
Other |  | (3.3 | )% |  | 3.5 | % |  | (0.6 | )%
Tax Act |  | — | % |  | — | % |  | 46.0 | %
|  | 5.0 | % |  | 20.7 | % |  | 80.3 | %
Schedule of Net Deferred Tax Liabilities | The components of net deferred income tax liabilities as of December 31, 2019 and 2018 were as follows (in thousands):
|  | 2019 |  | 2018
Deferred tax liabilities: |  |  |  |
Property and equipment |  | $ | 111,411 |  |  | $ | 116,178 |
Buy-in on maintenance contracts |  | 223 |  |  | 423 |
Total deferred tax liabilities |  | 111,634 |  |  | 116,601 |
Deferred tax assets: |  |  |  |
Tax loss carryforwards |  | 47,243 |  |  | 44,919 |
Stock compensation |  | 690 |  |  | 691 |
Reserves |  | 742 |  |  | 788 |
Other |  | 658 |  |  | (285 | )
Valuation allowance |  | (41,492 | ) |  | (37,869 | )
Total deferred tax assets |  | 7,841 |  |  | 8,244 |
Net deferred tax liabilities |  | $ | 103,793 |  |  | $ | 108,357 |
Summary of Income Tax Contingencies | A reconciliation of the beginning and ending amount of the gross unrecognized tax benefits, excluding interest and penalties, is as follows (in thousands):
| 2019 |  | 2018 | 2017
Unrecognized tax benefits at the beginning of the year | $ | 11 |  |  | $ | 11 |  | $ | 261 |
Reductions due to settlements with taxing authorities | — |  |  | — |  | (250 | )
Unrecognized tax benefits at the end of the year | $ | 11 |  |  | $ | 11 |  | $ | 11 |
Summary of Valuation Allowance | A reconciliation of the beginning and ending amount of the valuation allowance is as follows (in thousands):
| 2019 |  | 2018 | 2017
Valuation allowance at the beginning of the year | $ | 37,869 |  |  | $ | 34,967 |  | $ | 21,575 |
Increases to state valuation allowance | 1,616 |  |  | 50 |  | 10,010 |
Increases due to foreign valuation allowances | 2,007 |  |  | 2,852 |  | 7,578 |
Decrease due to Brazilian PERT Program | — |  |  | — |  | (4,196 | )
Valuation allowance at the end of the period | $ | 41,492 |  |  | $ | 37,869 |  | $ | 34,967 |

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