Schedule of Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Valuation and Qualifying Accounts Disclosure [Line Items]
Bad Debt Expense	$ 3.5	$ 1.4	$ 0.2
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance	2.8	1.7	2.3
Valuation Allowances and Reserves, Balance		2.8	1.7
Valuation Allowances and Reserves, Deductions	(1.2)	(0.3)	(0.8)
Allowance for Doubtful Accounts Receivable	$ 5.1	$ 2.8	$ 1.7