Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Valuation Allowance [Line Items]
Effective Income Tax Rate, Continuing Operations	43.60%	40.70%	44.90%	41.10%
Provision for income taxes	$ 14,144,000	$ 15,295,000	$ 5,933,000	$ 8,727,000
State Enterprise Zone Credits			4,200,000
Net loss carryforward state tax credits			1,300,000
CA EZ tax credits [Member]
Valuation Allowance [Line Items]
State Enterprise Zone Credits			1,500,000
Valuation Allowances and Reserves, Adjustments			$ 1,700,000