Lease Commitments Lease Commitments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Lease Commitments [Abstract]
Operating Leases, Future Minimum Payments Due	$ 14.4
Operating Leases, Future Minimum Payments Due, Next Twelve Months	3.3
Operating Leases, Future Minimum Payments, Due in Two Years	2.8
Operating Leases, Future Minimum Payments, Due in Three Years	2.6
Operating Leases, Future Minimum Payments, Due in Four Years	2.6
Operating Leases, Future Minimum Payments, Due in Five Years	1.7
Operating Leases, Future Minimum Payments, Due Thereafter	1.4
Operating Leases, Rent Expense, Net	$ 3.7	$ 4.1	$ 3.8