Summary of Significant Accounting Policies (Detail) (USD $)	3 Months Ended						4 Months Ended		12 Months Ended
	Dec. 29, 2012	Jun. 16, 2012	Mar. 24, 2012	Dec. 31, 2011	Jun. 18, 2011	Mar. 26, 2011	Oct. 06, 2012	Oct. 08, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Advertising Expense									$ 65,600,000	$ 56,700,000	$ 61,100,000
Cooperative Advertising Amount									61,800,000	55,500,000	60,100,000
Percentage of LIFO Inventory	79.00%			84.00%					79.00%	84.00%
Inventory, LIFO Reserve, Period Charge	1,300,000	400,000	200,000	4,500,000	2,100,000	500,000	1,400,000	7,100,000	3,325,000	14,220,000	53,000
Inventory, LIFO Reserve	90,700,000			87,300,000					90,700,000	87,300,000
Impairment of Long-Lived Assets Held-for-use	13,100,000				100,000	2,000,000			13,100,000	600,000	900,000
Goodwill, Impairment Loss	132,000,000	34,600,000							166,630,000
Increase (Decrease) In Fair Value Inputs Discount Rate		0.50%							1.50%
Goodwill, Acquired During Period									23,028,000	4,085,000
Goodwill, Written off Related to Sale of Business Unit									(4,462,000)	(310,000)
Share-based Compensation (in Dollars)									(2,446,000)	5,429,000	7,871,000
Amortization of Intangible Assets									3,200,000	3,200,000	3,400,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	2,200,000								2,200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	2,000,000								2,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,900,000								1,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,700,000								1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,200,000								1,200,000
Workers' Compensation [Memeber]
Self Insurance Liability, Exposure, Per Claim Basis	600,000								600,000
Auto liability And General Liability [Member]
Self Insurance Liability, Exposure, Per Claim Basis	500,000								500,000
Health insurance [Member]
Self Insurance Liability, Exposure, Per Claim Basis	400,000								400,000
Food Distribution And Retail [Member]
Goodwill, Impairment Loss		132,000,000
Food Distribution [Member]
Goodwill, Impairment Loss		113,000,000							112,978,000
Retail [Member]
Goodwill, Impairment Loss		19,000,000							19,013,000
Increase (Decrease) In Fair Value Inputs Discount Rate									1.50%
Increase Decrease In Fair Value Inputs, Long-term Revenue Growth Rate									1.50%
Goodwill, Gross											600,000
Goodwill, Acquired During Period							22,900,000		23,028,000	4,085,000
Goodwill, Written off Related to Sale of Business Unit		4,500,000							(4,462,000)	(310,000)
Share-based Compensation (in Dollars)			200,000
Military [Member]
Goodwill, Impairment Loss	34,600,000								34,639,000
Goodwill, Fair Value Disclosure		15,700,000
Increase (Decrease) In Fair Value Inputs Discount Rate		1.00%
Increase Decrease In Fair Value Inputs, Long-term Revenue Growth Rate		2.00%
Goodwill, Period Increase (Decrease)											8,900,000
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life									10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life									40 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life									3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life									10 years
Income Approach Valuation Technique [Member]
Goodwill, Impaired, Percentage of Fair Value Determination	75.00%								75.00%
Market Approach Valuation Technique [Member]
Goodwill, Impaired, Percentage of Fair Value Determination	25.00%								25.00%
Minimum [Member]
Fair Value Inputs, Discount Rate		12.00%							9.00%
Fair Value Inputs, Long-term Revenue Growth Rate		(1.00%)
Maximum [Member]
Fair Value Inputs, Discount Rate		15.00%							12.00%
Fair Value Inputs, Long-term Revenue Growth Rate		2.00%
Customer Contracts And Relationships [Member]
Impairment of Intangible Assets (Excluding Goodwill)	$ 6,500,000