Income Taxes Income Taxes - Reconciliation (Details 3)	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation
U.S. federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	0.60%	(0.30%)	0.50%
Non-deductible share-based compensation expense	0.50%	1.30%	0.40%
Valuation allowance	(0.10%)	0.20%	0.40%
Tax-exempt interest income	(0.70%)	(1.90%)	(0.90%)
Foreign earnings at other than U.S. rates	(2.90%)	(1.20%)	(1.80%)
Other	(1.20%)	0.30%	(0.40%)
Effective income tax rates	31.20%	33.40%	33.20%