Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified		12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013 Allowance for Doubtful Accounts [Member]	Dec. 31, 2012 Allowance for Doubtful Accounts [Member]	Dec. 31, 2011 Allowance for Doubtful Accounts [Member]	Dec. 31, 2013 Deferred Tax Valuation Allowance [Member]	Dec. 31, 2012 Deferred Tax Valuation Allowance [Member]	Dec. 31, 2011 Deferred Tax Valuation Allowance [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of Period		$ 0.3	$ 0	$ 0.2	$ 1.9	$ 0.3	$ 0.1
Charge to Expenses		0.4	0.1	0.2	1.7	1.6	0.2
Deductions/(Additions)		0.2	(0.2)	0.4	0	0	0
Beginning of Period		$ 0.5	$ 0.3	$ 0	$ 3.6	$ 1.9	$ 0.3
Accounts receivable sold, discount percentage of face amount	2.50%