Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Valuation Allowance [Line Items]
Effective Income Tax Rate, Continuing Operations	43.00%	49.50%	43.60%	46.80%
Provision for income taxes	$ 3,685	$ 4,839	$ 12,041	$ 10,772
CALIFORNIA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	3,900		3,900
SOUTH CAROLINA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	900		900
CANADA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	1,400		$ 1,400
Maximum [Member]
Valuation Allowance [Line Items]
Unrecognized Tax Benefits, Period Increase (Decrease)	$ 100