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Acquisitions - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 1 Months Ended | 3 Months Ended |  | 1 Months Ended
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Sep. 27, 2013 | Sep. 28, 2012 | Sep. 27, 2013 | Sep. 28, 2012 | May 01, 2013 Qzina Specialty Foods North America Inc Product | Jun. 28, 2013 Qzina Specialty Foods North America Inc | May 01, 2013 Qzina Specialty Foods North America Inc Maximum | May 01, 2013 Qzina Specialty Foods North America Inc Minimum | Mar. 29, 2013 Queensgate Foodservice | Dec. 31, 2012 Queensgate Foodservice | Sep. 27, 2013 Queensgate Foodservice | Dec. 31, 2012 Queensgate Foodservice Maximum | Aug. 31, 2013 Michaels Finer Meats LLC | Aug. 10, 2012 Michaels Finer Meats LLC | Sep. 27, 2013 Michaels Finer Meats LLC | Sep. 28, 2012 Michaels Finer Meats LLC | Sep. 27, 2013 Michaels Finer Meats LLC | Aug. 10, 2012 Michaels Finer Meats LLC Maximum | Aug. 10, 2012 Michaels Finer Meats LLC Minimum | Apr. 30, 2012 Praml International, Ltd. | Jun. 29, 2012 Praml International, Ltd. | Apr. 27, 2012 Praml International, Ltd. | Apr. 30, 2012 Praml International, Ltd. Maximum | Apr. 30, 2012 Praml International, Ltd. Minimum
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company acquired outstanding equity interests |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |
Number of products |  |  |  |  | 3,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments for acquisition |  |  |  |  | $ 32,144 |  |  |  |  |  |  |  |  | $ 52,973 |  |  |  |  |  | $ 19,548 |  |  |  |
Cash acquired |  |  |  |  | 578 |  |  |  |  |  |  |  |  | 536 |  |  |  |  |  |  |  |  |  |
Legal fees |  |  |  |  |  | 149 |  |  | 69 |  |  |  |  |  |  | 85 |  |  |  |  | 23 |  |  |
Customer relationships amortized |  |  |  |  | 20 years |  |  |  |  | 7 years |  |  |  | 10 years |  |  |  |  |  | 11 years |  |  |  |
Trademarks amortized |  |  |  |  | 20 years |  |  |  |  |  |  |  |  |  |  |  |  | 20 years | 12 years |  |  |  | 20 years | 1 year
Covenants amortized |  |  |  |  |  |  | 5 years | 2 years |  | 5 years |  |  |  | 5 years |  |  |  |  |  | 6 years |  |  |  |
Initial purchase price |  |  |  |  |  |  |  |  |  | 21,900 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected additional acquisition price |  |  |  |  |  |  |  |  |  |  |  | 2,400 |  |  |  |  |  |  |  |  |  |  |  |
Achievement of certain performance milestones period |  |  |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of contingent consideration |  |  |  |  |  |  |  |  |  | 2,118 | 2,167 |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill amortization period |  |  |  |  |  |  |  |  |  | 15 years |  |  |  | 15 years |  |  |  |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  |  |  |  |  |  |  |  | 335 |  |  |  |  |  |  |  |  |  |  |
Net sales | 170,581 | 124,807 | 480,158 | 337,701 |  |  |  |  |  |  |  |  |  |  | 22,441 |  | 66,597 |  |  |  |  |  |  |
Income before provision for taxes | $ 7,107 | $ 6,312 | $ 20,787 | $ 18,443 |  |  |  |  |  |  |  |  |  |  | $ 984 |  | $ 3,873 |  |  |  |  |  |  |
Company acquired outstanding common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |

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