SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		$ 7.9	$ 4.4	$ 3.6
Additions Charged to Costs, Provisions and Expenses		3.8	6.2	2.6
Deductions	[1]	(7.5)	(2.7)	(1.8)
Balance at End of Period		$ 4.2	$ 7.9	$ 4.4

[1] Includes impact of translation of foreign currencies.