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Fair Value Measurements - Changes in Fair Value of Recurring Fair Value Measurements Using Significant Unobservable Inputs (Level 3), Consisting of Contingent Consideration Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Sep. 28, 2013
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Sep. 29, 2012
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Sep. 24, 2011
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| Fair Value Disclosures [Abstract] | |||
| Beginning Balance | $ 86,368 | $ 103,790 | $ 29,500 |
| Contingent consideration recorded at acquisition | 525 | 86,600 | |
| Fair value adjustments | 11,310 | 38,466 | (8,016) |
| Payments made | (94,423) | (55,888) | (4,294) |
| Ending Balance | $ 3,780 | $ 86,368 | $ 103,790 |