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Fair Value Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Sep. 28, 2012 | Sep. 30, 2011 | Oct. 01, 2010
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Payment of Contingent Consideration | $ (52,940) | $ 0 | $ 0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Balance at September 30, 2011 | 59,400 |  |
Changes in Fair Value | (5,414) |  |
Balance at September 28, 2012 | $ 1,046 |  |

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