Leases Future Minimum Lease Rents (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Future Minimum Lease Rents Due [Abstract]
Asset Cost of Leased Property	$ 90.1		$ 90.1
Carrying Amount on Leased Property	66.1		67.8
Contingent Rent Expense on Leases	2.8		2.7	2.8
Minimum Rent Expense on Leases	75.4		78.0	81.8
2014	18.1
2015	18.3	[1]
2016	17.8
2017	17.9
2018	17.5
Thereafter	55.2
Total minimum rents receivable	144.8
2014	98.9
2015	101.1	[1]
2016	99.0
2017	99.0
2018	98.3
Thereafter	652.2
Total minimum rents receivable	$ 1,148.5

[1] Due to the varying closing date of the Company's fiscal year, 13 monthly payments will be made in fiscal 2015