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INCOME TAXES - ADDITIONAL INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Decrease in UTB from tax settlements	$ 4.5
Excess tax benefit related share based compensation	$ (5.0)	$ (0.3)
Tax expense related to enacted statutory rate changes		0.2
Tax expense for other discrete tax matters		0.6
Tax expense related to gain on sale of marketable securities		$ 2.2
Indefinite-lived intangible asset impairment charges			$ 50.4
Income tax benefit related to fixed asset impairment charge			1.1
Goodwill deduction			$ 3.3

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- Definition

Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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