Summary Of Significant Accounting Policies - Additional Information (Detail) - USD ($)		3 Months Ended						4 Months Ended		12 Months Ended
	Apr. 03, 2012	Jan. 02, 2016	Oct. 10, 2015	Jul. 18, 2015	Jan. 03, 2015	Oct. 04, 2014	Jul. 12, 2014	Apr. 25, 2015	Apr. 19, 2014	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Significant Accounting Policies [Line Items]
Sales		$ 858,363,000	$ 885,302,000	$ 888,795,000	$ 877,333,000	$ 844,932,000	$ 872,791,000	$ 1,146,045,000	$ 1,153,917,000	$ 3,778,505,000	$ 3,748,973,000	$ 3,732,616,000
Inventory		111,177,000			93,100,000					111,177,000	93,100,000
Deferred gain on sale of assets held for sale		26,200,000			30,100,000					26,200,000	30,100,000
Net gain on sale of distribution rights										4,100,000	3,800,000	5,500,000
Shipping costs										852,300,000	847,600,000	797,400,000
Equipment held under capital leases		29,900,000			28,900,000					29,900,000	28,900,000
Total accumulated depreciation for assets held under capital leases		9,700,000			6,300,000					9,700,000	6,300,000
Depreciation expense										116,800,000	117,200,000	106,700,000
Capitalized interest		0			0					0	0	0
Impairment charge of long-lived assets held and used										1,500,000	0	0
Impairment of other Intangible Assets excluding goodwill										0	0	0
Goodwill impairment loss							$ 2,600,000				2,624,000
Advertising and marketing costs										23,500,000	22,900,000	28,100,000
Capitalized software development costs		15,000,000			13,000,000					15,000,000	13,000,000
Amortization expense of capitalized software development costs										$ 3,500,000	2,400,000	3,200,000
Plan asset amortization conditional percentage										10.00%
Research and development costs										$ 3,300,000	$ 3,200,000	$ 2,600,000
Senior Notes Issued
Significant Accounting Policies [Line Items]
Debt instrument face amount	$ 400,000,000
Debt issuance cost, amortization period	10 years
Customer Concentration Risk | Top 10 Customers | Sales Revenue, Net
Significant Accounting Policies [Line Items]
Percentage of sales										43.50%	43.90%	44.70%
Maximum
Significant Accounting Policies [Line Items]
Gain on sale of distribution rights recognized immediately										$ 5,000
Finite-lived intangible asset amortization periods										40 years
Maximum | Building
Significant Accounting Policies [Line Items]
Estimated useful life, years										40 years
Maximum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Estimated useful life, years										25 years
Maximum | Furniture Fixtures And Transportation Equipment
Significant Accounting Policies [Line Items]
Estimated useful life, years										15 years
Maximum | Capitalized Software Development Costs
Significant Accounting Policies [Line Items]
Estimated useful life, years										8 years
Maximum | Direct Financing To Distributor
Significant Accounting Policies [Line Items]
Notes receivable maturity period										10 years
Minimum
Significant Accounting Policies [Line Items]
Finite-lived intangible asset amortization periods										2 years
Minimum | Building
Significant Accounting Policies [Line Items]
Estimated useful life, years										10 years
Minimum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Estimated useful life, years										3 years
Minimum | Furniture Fixtures And Transportation Equipment
Significant Accounting Policies [Line Items]
Estimated useful life, years										3 years
Minimum | Capitalized Software Development Costs
Significant Accounting Policies [Line Items]
Estimated useful life, years										3 years
Pay By Scan
Significant Accounting Policies [Line Items]
Sales										$ 1,200,000,000	$ 1,200,000,000	$ 1,100,000,000
Inventory		$ 6,200,000			$ 6,100,000					$ 6,200,000	$ 6,100,000