Debt And Capital Lease Obligations (Revolving Credit Facility) (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013 2011 Credit Facility [Member]	Mar. 11, 2013 2011 Credit Facility [Member]	Mar. 03, 2014 2014 Term Loan [Member]	Mar. 03, 2014 2014 Revolving Credit Facility [Member]	Mar. 31, 2014 2014 Credit Facility [Member]	Mar. 03, 2014 2014 Credit Facility [Member]
Senior Notes	$ 230.0	$ 0
Line of Credit Facility, Amount Outstanding	350.0	0					350.0
Interest Payable, Current	13.0
Line of Credit Facility, Expiration Date			Mar. 03, 2019
Line of credit, maximum borrowing capacity				$ 300.0	$ 350.0	$ 300.0	$ 300.0	$ 650.0