Fair Value Disclosure (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value Disclosure (Textual) [Abstract]
Derivative, Notional Amount	$ 163.6	$ 0
Cash Flow Hedge Pre Tax Gain Loss to be Reclassified within Twelve Months	(6.2)
Expected After tax reclassification of net losses from accumulated other comprehensive income to earnings in Next Twelve Months	3.9
Aggregate fair value of all derivative instruments with Net liability position	1.0
Derivative Asset, Notional Amount	$ 200.0	$ 100.0
Document Period End Date	Dec. 31, 2013
Fair Value Hedging [Member]
Fair Value Disclosure (Textual) [Abstract]
Number of instruments, outstanding	3	1
Cash Flow Hedges [Member]
Fair Value Disclosure (Textual) [Abstract]
Number of instruments, outstanding	6	12