Schedule of Derivative Instruments by Income Statement Location (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 29, 2012		Sep. 24, 2011		Sep. 29, 2012		Sep. 24, 2011
Non-designated hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in statement of operations	$ (1,196)	[1],[2]	$ 215	[1],[2]	$ (2,769)	[1],[2]	$ 703	[1],[2]
Non-designated hedging instruments | Foreign Exchange Contracts | Miscellaneous expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in statement of operations	(1,936)	[1],[2]	(220)	[1],[2]	(3,099)	[1],[2]	(2,728)	[1],[2]
Non-designated hedging instruments | Commodity Contracts - Fuel | Cost of goods sold and occupancy costs & Store and warehouse operating and selling expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in statement of operations	740	[1],[2]	435	[1],[2]	330	[1],[2]	3,431	[1],[2]
Designated cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
(Gain)/Loss Recognized in OCI	(369)		581		(750)		1,346
(Gain)/Loss Reclassified from OCI to Statement of operations			95	[3]	134	[3]	450	[3]
Designated cash flow hedges | Foreign Exchange Contracts | Cost Of Goods Sold and Occupancy Costs
Derivative Instruments, Gain (Loss) [Line Items]
(Gain)/Loss Recognized in OCI	(369)		581		(750)		1,346
(Gain)/Loss Reclassified from OCI to Statement of operations			$ 95	[3]	$ 134	[3]	$ 450	[3]

[1] Foreign exchange contracts amounts are included in Miscellaneous income, net

[2] Approximately 60% of the fuel commodity contracts amounts are reflected in Cost of goods sold and occupancy costs. The remaining 40% of the amounts are reflected in Store and warehouse operating and selling expenses.

[3] Included in Cost of goods sold and occupancy costs