Income Taxes (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 04, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	39.00%	39.50%
Unrecognized tax benefits	$ 1,949	$ 1,949
Unrecognized tax benefits that would impact effective tax rate	1,512	1,512
Unrecognized tax benefits, interest on income taxes accrued	$ 77	$ 77