Information Regarding Operations in Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 29, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011		Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 29, 2012		Dec. 31, 2011		Jan. 01, 2011
Segment Reporting Information [Line Items]
Sales	$ 749,442		$ 717,282	$ 681,561	$ 898,206	$ 653,566		$ 675,369	$ 642,596	$ 801,825	$ 3,046,491		$ 2,773,356		$ 2,573,769
Depreciation and amortization											102,690		94,638		85,118
Income from operations											218,511		189,026		205,862
Net interest(expense)income											(9,739)		2,940		4,518
Capital expenditures											67,259		79,162		98,404
Income before income taxes											208,772		191,966		210,380
Assets	1,995,849					1,553,998					1,995,849		1,553,998
DSD
Segment Reporting Information [Line Items]
Sales											2,541,135		2,291,011		2,096,100
Sales											2,508,856		2,265,244		2,071,356
Depreciation and amortization											84,290		74,378		65,977
Income from operations											233,196		203,248		194,972
Capital expenditures											52,375		61,017		69,252
Assets	1,638,826					1,222,896					1,638,826		1,222,896
Warehouse
Segment Reporting Information [Line Items]
Sales											648,889		618,982		613,627
Sales											537,635		508,112		502,413
Depreciation and amortization											18,267		19,768		18,985
Income from operations											36,230		27,351		47,925
Capital expenditures											10,809		14,379		24,693
Assets	245,195					230,711					245,195		230,711
Sales From Warehouse Delivery To DSD
Segment Reporting Information [Line Items]
Sales											(111,254)		(110,870)		(111,214)
Sales From DSD To Warehouse Delivery
Segment Reporting Information [Line Items]
Sales											(32,279)		(25,767)		(24,744)
Other
Segment Reporting Information [Line Items]
Depreciation and amortization											133	[1]	492	[1]	156	[1]
Income from operations											(50,915)	[1]	(41,573)	[1]	(37,035)	[1]
Capital expenditures											4,075	[1]	3,766	[1]	4,459	[1]
Assets	$ 111,828	[2]				$ 100,391	[2]				$ 111,828	[2]	$ 100,391	[2]

[1] Represents the company's corporate head office amounts and acquisition costs.

[2] Represents the company's corporate head office assets including primarily cash and cash equivalents, deferred taxes and deferred financing costs.