Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Examination [Line Items]
Federal corporate tax rate	35.00%	35.00%	35.00%
Increase (decrease) in net liability for unrecognized tax benefits	$ (551)	$ (37)
Accrued interest expense	200	200
Unrecognized tax benefits that would impact our effective tax rate	5,000	5,500
Interest included in total liability	1,400	$ 1,700
Significant increases or decreases for uncertain tax positions	$ 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