Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		$ 23.0	$ 24.3	$ 20.9
Charged to costs and expenses		(0.2)	(0.5)	2.8
Deductions	[1]	(2.1)	(0.8)	0.6
Balance at end of period		20.7	23.0	24.3
Deferred Tax Asset Valuation Allowance [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		22.1	23.5	20.4
Charged to costs and expenses		(0.3)	(0.9)	2.8
Deductions	[1]	(1.7)	(0.5)	0.3
Balance at end of period		20.1	22.1	23.5
Allowance for Doubtful Accounts Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		0.9	0.8	0.5
Charged to costs and expenses		0.1	0.4	0.0
Deductions	[1]	(0.4)	(0.3)	0.0
Balance at end of period		$ 0.6	$ 0.9	$ 0.8

[1] Includes accounts receivable written off, the write-off or write-down of valuation allowances, and translation adjustments.