Debt (Details Textual) (USD $)	12 Months Ended
	Dec. 30, 2014		Mar. 31, 2015
Debt (Textual) [Abstract]
Borrowing capacity available under our revolving line of credit	$ 110,000,000		$ 110,000,000
Long-term Debt	595,421,000		593,342,000
Credit Agreement Period	95 days
Revolving Facility ($110 million)
Debt (Textual) [Abstract]
Borrowing capacity available under our revolving line of credit			90,900,000
Outstanding letters of credit			19,100,000
Long-term Debt	$ 0	[1]

[1] The Company had $90.9 million of borrowing capacity available under its revolving credit facility (“Revolving Facility”), net of $19.1 million of outstanding letters of credit at March 31, 2015 and at 12/30/2014.