Subsequent Events (Details)	12 Months Ended
	Dec. 29, 2018
Category one [Member]
Funded Debt to Adjusted EBITDA Ratio	Category 1
Revolving Eurodollar Borrowing	2.00%
ABR Revolving borrowing	0.00%
Letter Of Credit Fee	2.00%
Commitment Fee Percentage	0.30%
Category Two [Member]
Funded Debt to Adjusted EBITDA Ratio	Category 2
Revolving Eurodollar Borrowing	1.75%
ABR Revolving borrowing	(0.25%)
Letter Of Credit Fee	1.75%
Commitment Fee Percentage	0.30%
Category Three [Member]
Funded Debt to Adjusted EBITDA Ratio	Category 3
Revolving Eurodollar Borrowing	1.50%
ABR Revolving borrowing	(0.50%)
Letter Of Credit Fee	1.50%
Commitment Fee Percentage	0.30%