Property, Plant and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Capital Expenditures Incurred but Not yet Paid	$ 1.0
Property, Plant and Equipment (Textual) [Abstract]
Depreciation	$ 11.1	$ 11.5	$ 10.9