Supplemental Balance Sheet Information (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Accounts Receivable
Accounts receivable	$ 141.4		$ 177.8
Less reserves and allowances	(10.6)	[1]	(14.5)	[1]
Accounts receivable, net	130.8		163.3
Inventories
Finished goods	81.8		76.3
Work in process	3.4		2.9
Raw materials and supplies	7.4		5.1
Total inventories	92.6		84.3
Property, Plant and Equipment
Property, plant and equipment	201.4		201.7
Less accumulated depreciation	(151.2)		(150.1)
Property, plant and equipment, net	50.2		51.6
Rebates payable	$ 27.9		$ 33.2

[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.