Income Taxes Income Tax Examination (Details) (Internal Revenue Service (IRS) [Member], USD $)	6 Months Ended
	Jun. 30, 2014
Income Tax Examination [Line Items]
Income tax examination, examination completion date	February 2013
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	$ 57,000
Maximum [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2010
Minimum [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2009