Property, Plant and Equiptment (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]
Depreciation	$ 20.4	$ 22.7	$ 20.8
Capital lease obligation	8.0	8.4	12.1
Amortization of leased asset	0.4	0.4	0.4
Capital leases accumulated depreciation	$ 1.2	$ 0.8