Schedule II - Valuation and Qualifying Accounts Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	$ 13.3		$ 5.3		$ 5.0
Acquired Reserves	0		6.1		0
Charged to Expenses	46.8		42.3		32.0
Deductions	(47.1)		(40.4)		(31.7)
Balance End of Year	13.0		13.3		5.3
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	3.9		1.9		1.9
Acquired Reserves	0		0		0
Charged to Expenses	2.2		2.8		1.0
Deductions	(1.2)	[1]	(0.8)	[1]	(1.0)	[1]
Balance End of Year	4.9		3.9		1.9
Reserve for Customer Deductions
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	6.7		3.4		3.1
Acquired Reserves	0		3.4		0
Charged to Expenses	44.5		39.5		31.0
Deductions	(44.8)	[2]	(39.6)	[2]	(30.7)	[2]
Balance End of Year	6.4		6.7		3.4
Deferred Tax Asset Valuation Allowance
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	2.7		0
Acquired Reserves	0		2.7
Charged to Expenses	0.1		0
Deductions	(1.1)		0
Balance End of Year	$ 1.7		$ 2.7

[1] Consists primarily of uncollectable accounts written off, net of recoveries, during the year.

[2] Consists primarily of discounts taken by customers during the year.