Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Examination [Line Items]
Material changes to the total amount of unrecognized tax benefits	$ 0		$ 0
Accrued interest expense	52	$ 63	176	$ 185
Gross liability for unrecognized tax benefits	8,400		8,400
Unrecognized tax benefits that would impact our effective tax rate	5,400		5,400
Interest included in total liability	1,600		1,600
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