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INCOME TAXES - Narrative (Details) | 12 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Valuation Allowance [Line Items] |  |  |
One time repatriation tax |  | $ 5,200,000 |
Measurement period adjustment, one time repatriation tax | $ 4,500,000 |  |
Measurement period adjustment, favorable impact in effective tax rate | 0.011 |  |
Deferred tax asset, income tax expense due to Tax Cuts and Jobs Act |  | 10,400,000 |
Tax expense from discontinued operations | $ 23,000,000 | 11,000,000 | $ 7,400,000
Net operating loss | (61,700,000) | (45,700,000) | (8,000,000)
Valuation allowances | 18,300,000 | 18,300,000 |
Deductible from state and foreign temporary tax differences | 300,000 |  |
Undistributed earnings of its foreign subsidiaries | 1,500,000 |  |
Uncertain tax positions | 0 |  |
Unrecognized tax benefits, accrued interest and penalties | 0 | $ 0 | $ 0
Foreign |  |  |
Valuation Allowance [Line Items] |  |  |
Net operating loss | 9,200,000 |  |
Tax credit carryforward, amount | 1,700,000 |  |
Net operating loss carryforwards, valuation allowance | 9,200,000 |  |
Tax credit carryforward, valuation allowance | 1,700,000 |  |
Federal |  |  |
Valuation Allowance [Line Items] |  |  |
Remaining net operating loss, utilization of carryforward from US federal | 39,200,000 |  |
Net operating loss | 0 |  |
State |  |  |
Valuation Allowance [Line Items] |  |  |
Net operating loss | 9,100,000 |  |
Net operating loss carryforwards, valuation allowance | 7,100,000 |  |
French tax authority |  |  |
Valuation Allowance [Line Items] |  |  |
Tax expense from discontinued operations | $ 23,000,000 |  |

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