| INCOME TAXES (Deferred Income Tax Assets and Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015 | 
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Deferred Tax Assets, Goodwill and Intangible Assets | $ 113.8 | $ 0.0 | 
| Long-term deferred income tax assets, included in other assets | 4.7 | 6.3 | 
| Long-term deferred income tax liabilities | (325.4) | (205.5) | 
| Net deferred income tax liability | $ (320.7) | $ (199.2) | 
| X | ||||||||||
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill. No definition available. 
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| X | ||||||||||
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- References No definition available. 
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