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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 |

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