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INCOME TAXES - Summary of Net Operating Loss Carryforwards (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Operating Loss Carryforwards [Line Items] |
Carryforward Amount | $ 285.2
Tax Benefit Amount | 42.6
Valuation Allowance | (24.2)
Net Tax Benefit | 18.4
United States Federal Tax Authority | United States | Carryforward Period Ends 2033-2036 |
Operating Loss Carryforwards [Line Items] |
Carryforward Amount | 9.6
Tax Benefit Amount | 2.0
Valuation Allowance | 0.0
Net Tax Benefit | 2.0
United States Federal Tax Authority | United States | Carryforward Period Ends 2022 |
Capital Loss Carryforward [Abstract] |
Carryforward Amount | 34.2
Tax Benefit Amount | 0.5
Valuation Allowance | (0.5)
Net Tax Benefit | 0.0
United States state net operating losses | United States | Carryforward Period Ends 2018-2035 |
Operating Loss Carryforwards [Line Items] |
Carryforward Amount | 19.1
Tax Benefit Amount | 1.2
Valuation Allowance | (1.2)
Net Tax Benefit | 0.0
Non-United States net operating losses | International | Carryforward Period Ends 2018-2026 |
Operating Loss Carryforwards [Line Items] |
Carryforward Amount | 42.3
Tax Benefit Amount | 6.6
Valuation Allowance | (4.6)
Net Tax Benefit | 2.0
Non-United States net operating losses | International | Carryforward Period Indefinite |
Operating Loss Carryforwards [Line Items] |
Carryforward Amount | 180.0
Tax Benefit Amount | 32.3
Valuation Allowance | (17.9)
Net Tax Benefit | $ 14.4

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