Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Valuation Allowance [Line Items]
Effective Income Tax Rate, Continuing Operations	43.60%		43.90%	44.90%
Provision for income taxes	$ 16,203	$ 14,144	$ 8,357	$ 5,933
Unrecognized Tax Benefits, Period Increase (Decrease)	100
CALIFORNIA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	4,300		4,300
SOUTH CAROLINA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	1,300		1,300
CANADA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 1,400		$ 1,400