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Borrowing Arrangements (Tables) | 12 Months Ended
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Sep. 30, 2011
Debt Disclosure [Abstract] |
Additional Information About The Company's 1.50% Notes | The following tables provide additional information about the Company's 2007 Convertible Notes (in thousands):
| As of
| September 30, 2011 |  | October 1, 2010
Equity component of the convertible notes outstanding | $ | 6,061 |  |  | $ | 6,061 |
Principal amount of the convertible notes | 26,677 |  |  | 26,677 |
Unamortized discount of the liability component | 588 |  |  | 1,934 |
Net carrying amount of the liability component | 26,089 |  |  | 24,743 |
| Fiscal Years Ended
| September 30, 2011 |  | October 1, 2010
Effective interest rate on the liability component | 6.86 | % |  | 6.86 | %
Cash interest expense recognized (contractual interest) | $ | 400 |  |  | $ | 734 |
Effective interest expense recognized | $ | 1,345 |  |  | $ | 2,502 |

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