Supplemental Balance Sheet Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Inventories
Finished goods	$ 51.1		$ 76.3
Work in process	0.7		2.9
Raw materials and supplies	5.9		5.1
Total inventories	57.7		84.3
Property, Plant and Equipment
Property, plant and equipment, gross	184.0		201.7
Less accumulated depreciation	(139.0)		(150.1)
Property, plant and equipment, net	45.0		51.6
Allowance for Doubtful Accounts Receivable [Roll Forward]
Reserves and allowances, beginning balance	14.5	[1]	18.0	[1]	18.4	[1]
Additions	2.9	[1]	6.6	[1]	10.3	[1]
Write-offs, net of recoveries	(8.3)	[1]	(10.1)	[1]	(10.7)	[1]
Reserves and allowances, ending balance	9.1	[1]	14.5	[1]	18.0	[1]
Land
Property, Plant and Equipment
Property, plant and equipment, gross	1.2		1.2
Buildings and leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, gross	94.7		95.4
Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	88.0		104.0
Construction in progress
Property, Plant and Equipment
Property, plant and equipment, gross	0.1		1.1
Other Current Liabilities
Supplemental Balance Sheet Information [Line Items]
Rebates	26.9		33.2
Accrued payroll	$ 18.4		$ 19.5

[1] Accounts receivable reserves and allowances include estimated amounts for customer returns, discounts on payment terms and the inability of certain customers to make the required payment.