Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Taxes (Textual) [Abstract]
Tax effected in state net operating loss carryforwards	$ 0.7	$ 0.7
Tax effected in foreign net operating loss carryforwards	19.4	21.1
Future foreign taxable income	87.4
Future U.S. federal income	136.2
U.S. taxable income	70.0	60.0
Unrecognized tax benefits that would impact the effective tax rate	0.7
Interest and penalties in income tax expense	$ 0.1