Summary of Significant Accounting Policies (Detail) - Other intangible assets (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Net Carrying Amount	$ 6,649	$ 15,399
Franchise Rights [Member]
Gross Carrying Value	2,694	2,694
Accumulated Amortization	(1,718)	(1,609)
Net Carrying Amount	976	1,085
Estimated Life (years)	17-25	17-25
Noncompete Agreements [Member]
Gross Carrying Value	520	366
Accumulated Amortization	(251)	(225)
Net Carrying Amount	269	141
Estimated Life (years)	5	4-10
Pharmacy Scripts [Member]
Gross Carrying Value	2,477	2,034
Accumulated Amortization	(1,413)	(940)
Net Carrying Amount	1,064	1,094
Estimated Life (years)	5	5
Licensing Agreements [Member]
Gross Carrying Value	53	53
Accumulated Amortization	(47)	(38)
Net Carrying Amount	6	15
Estimated Life (years)	5	5
Trademarks [Member]
Gross Carrying Value	2,900	209
Accumulated Amortization	(100)
Net Carrying Amount	2,800	209
Estimated Life (years)	15	Indefinite
Leasehold Interests [Member]
Gross Carrying Value	4,170
Accumulated Amortization	(203)
Net Carrying Amount	$ 3,967
Estimated Life (years)	5-25