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INCOME TAXES Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating Loss Carryforwards [Line Items] |  |  |  |
Valuation allowance | $ 41,492,000 | $ 41,492,000 | $ 37,869,000 |
Unrecognized tax benefits, penalties and accrued interest | 100,000 | 100,000 |  |
Income tax benefit |  | (731,000) | 2,940,000 | $ (122,665,000)
Domestic Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating loss carryforwards | 0 | 0 | 0 |
State and Local Jurisdiction |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating loss carryforwards | 388,700,000 | 388,700,000 | 377,700,000 |
Valuation allowance | 19,700,000 | 19,700,000 |  |
Foreign Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating loss carryforwards | 63,200,000 | 63,200,000 | $ 56,900,000 |
Tax credit carryforward | 600,000 | 600,000 |  |
Valuation allowance | 21,800,000 | 21,800,000 |  |
Aeroleo |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Valuation allowance | 19,900,000 | 19,900,000 |  |
Aeroleo | Foreign Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Income tax benefit | 3,500,000 |  |  |
Sicher |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Valuation allowance | 1,300,000 | 1,300,000 |  |
Foreign Tax Credit | Foreign Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Valuation allowance | $ 600,000 | $ 600,000 |  |

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