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INCOME TAXES (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes Uncertain Tax Positions and Tax Reform [Abstract]
Liability for uncertain tax positions	$ 29.8		$ 30.4
Liability for uncertain tax positions - current	1.4		2.5
Liability for uncertain positions expected to be resolved in next fiscal year	1.4
Interest and penalties uncertain tax positions recognized	0.5	$ 0.4
Benefit on reversal of interest and penalties	0.4
Accrued interest and penalties uncertain tax positions	$ 3.2		$ 3.2
Federal statutory income tax rate	21.00%		35.00%
One-time transition tax	$ 18.1
Maximum [Member]
Income Taxes Uncertain Tax Positions and Tax Reform [Abstract]
Benefit on reversal of interest and penalties		$ (0.1)

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) on reversal of interest and penalties pertaining to continuing operations.

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Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

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Amount of best estimate decrease in unrecognized tax benefits resulting from the expiration of limitations or settlement in the next fiscal year.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount recognized for uncertainty in income taxes classified as current.

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Amount of unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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