Income Taxes Income Tax Expense (Benefit) Reconciliation to Statutory Rate (Details) - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Subsequent Event [Line Items]
Statutory federal income tax	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	2.50%	2.60%	3.00%
Manufacturing deduction	(3.50%)	(3.30%)	(1.70%)
Effect of 2018 deferred tax rate change	(1.90%)	(0.00%)	(0.00%)
Changes in unrecognized tax benefits	(0.60%)	1.20%	0.30%
Non-taxable acquisition-related transactions	0.00%	0.00%	(2.60%)
Other	(3.00%)	(3.20%)	(1.00%)
Effective income tax rate	28.50%	32.30%	33.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	$ 1,700,000.000