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INCOME TAXES - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Tax Credit Carryforward [Line Items] |  |
Deferred tax asset payable to parent | $ 88,000,000.0 |
Income tax benefit related to net operating losses | 12,600,000 |
Deferred tax assets | 263,603,000 | $ 251,208,000
Deferred tax assets, valuation allowance | 77,076,000 | 71,472,000
Unrecognized tax (benefit), accruals for interest and penalties | 0 |
Unrecognized tax benefits, income tax penalties accrued |  | 0
Unrecognized tax benefits including tax interest accrued | 5,300,000 | 4,100,000
Unrecognized tax benefits unrelated to federal income taxes statute of limitations expiring to be recognized in subsequent periods that would impact income tax expense, continuing operations | 5,100,000 | $ 4,000,000.0
Decrease in unrecognized tax benefits is reasonably possible | 500,000 |
Federal Tax Authority |  |
Tax Credit Carryforward [Line Items] |  |
Operating loss carryforwards | 431,500,000 |
Operating loss carryforwards not subject to expiration | 59,300,000 |
Operating loss carryforwards subject to expiration within twenty years | 372,200,000 |
State and Local Jurisdiction |  |
Tax Credit Carryforward [Line Items] |  |
Operating loss carryforwards | 375,900,000 |
Operating loss carryforwards not subject to expiration | 79,900,000 |
Federal and State Tax Credits |  |
Tax Credit Carryforward [Line Items] |  |
Operating loss carryforwards not subject to expiration | 166,100,000 |
Tax Credit Carryforward, Amount | 16,600,000 |
Tax credit carryforwards not subject to expiration | 600,000 |
Tax credit carryforwards, subject to expiration | 16,000,000.0 |
Deferred tax assets | 176,400,000 |
Foreign Tax Authority |  |
Tax Credit Carryforward [Line Items] |  |
Operating loss carryforwards not subject to expiration | 374,300,000 |
Operating loss carryforwards available to offset future income | 413,700,000 |
Operating loss carryforwards subject to expiration | 39,400,000 |
Deferred tax assets, valuation allowance | $ 5,600,000 |

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