Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended						12 Months Ended												12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012 beginning of period [Member]	Dec. 31, 2011 beginning of period [Member]	Jan. 01, 2011 beginning of period [Member]	Dec. 28, 2013 additions to self-insurance reserves [Member]	Dec. 29, 2012 additions to self-insurance reserves [Member]	Dec. 31, 2011 additions to self-insurance reserves [Member]	Dec. 28, 2013 additions to self-insurance reserves from BWP acquisition [Member]	Dec. 29, 2012 additions to self-insurance reserves from BWP acquisition [Member]	Dec. 31, 2011 additions to self-insurance reserves from BWP acquisition [Member]	Dec. 28, 2013 Reserves utilized [Member]	Dec. 29, 2012 Reserves utilized [Member]	Dec. 31, 2011 Reserves utilized [Member]	Dec. 28, 2013 end of period [Member]	Dec. 29, 2012 end of period [Member]	Dec. 31, 2011 end of period [Member]	Dec. 28, 2013 Vendor Promotional Funds [Member]	Dec. 29, 2012 Vendor Promotional Funds [Member]	Dec. 31, 2011 Vendor Promotional Funds [Member]
Credit and Debit Card Receivables, at Carrying Value	$ 28,828	$ 26,738
Bank overdrafts	5,796	8,722
Deferred vendor incentives included in inventory	111,304	102,975
Advertising Expense	69,116	83,871	84,656																18,622	11,445	0
Self-insurance reserves				94,548	98,944	97,070										98,475	94,548	98,944
Additions to self-insurance reserves							120,782	105,670	105,379	4,195	0	0	(121,050)	(110,066)	(103,505)
Deferred Rent Credit	$ 50,638	$ 45,791