Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Tax Examination [Line Items]
Material changes to the total amount of unrecognized tax benefits	$ 0		$ 0
Accrued interest expense	65	$ 64	124	$ 122
Gross liability for unrecognized tax benefits	9,100		9,100
Unrecognized tax benefits that would impact our effective tax rate	5,800		5,800
Interest included in total liability	1,800		1,800
Significant increases or decreases for uncertain tax positions	$ 0		$ 0
State and Foreign Tax Authorities | Minimum
Income Tax Examination [Line Items]
Period of statute of limitations (years)			3 years
State and Foreign Tax Authorities | Maximum
Income Tax Examination [Line Items]
Period of statute of limitations (years)			4 years