Income Taxes (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits	$ 5.6
Effective Income Tax Rate Reconciliation, Percent	35.00%	32.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 5.6
Decrease in Income Tax Expenses Unrecognized Tax Benefits if Recognized Net of Federal Tax	$ 3.6