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SUPPLEMENTAL GUARANTOR FINANCIAL INFORMATION (Statements of Comprehensive Income)(Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Supplemental Guarantor Financial Information Statements Of Comprehensive Income [Line Items] |  |
Net income (loss) | $ 13.4 | $ (37.9)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 6.0 | 15.5
Unrealized (losses) gains on derivative contracts, net | (2.0) | 3.0
Amortization of prior service costs and actuarial losses, net | 3.9 | 3.8
Other comprehensive income | 7.9 | 22.3
Comprehensive Income (Loss), Net of Tax, Attributable to Parent | 21.3 | (15.6)
Parent Guarantor |  |
Supplemental Guarantor Financial Information Statements Of Comprehensive Income [Line Items] |  |
Net income (loss) | 9.7 | (37.9)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 0.0 | 0.0
Unrealized (losses) gains on derivative contracts, net | (2.0) | 3.0
Amortization of prior service costs and actuarial losses, net | 3.7 | 3.3
Other comprehensive income | 1.7 | 6.3
Comprehensive Income (Loss), Net of Tax, Attributable to Parent | 11.4 | (31.6)
Issuer |  |
Supplemental Guarantor Financial Information Statements Of Comprehensive Income [Line Items] |  |
Net income (loss) | 9.4 | 18.7
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 0.0 | 0.0
Unrealized (losses) gains on derivative contracts, net | 0.0 | 0.0
Amortization of prior service costs and actuarial losses, net | 0.0 | 0.0
Other comprehensive income | 0.0 | 0.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent | 9.4 | 18.7
Subsidiary Non-Guarantor |  |
Supplemental Guarantor Financial Information Statements Of Comprehensive Income [Line Items] |  |
Net income (loss) | 51.9 | (3.9)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 6.0 | 15.5
Unrealized (losses) gains on derivative contracts, net | 0.0 | 0.0
Amortization of prior service costs and actuarial losses, net | 0.2 | 0.5
Other comprehensive income | 6.2 | 16.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent | 58.1 | 12.1
Eliminations |  |
Supplemental Guarantor Financial Information Statements Of Comprehensive Income [Line Items] |  |
Net income (loss) | (57.6) | (14.8)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 0.0 | 0.0
Unrealized (losses) gains on derivative contracts, net | 0.0 | 0.0
Amortization of prior service costs and actuarial losses, net | 0.0 | 0.0
Other comprehensive income | 0.0 | 0.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent | $ (57.6) | $ (14.8)

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