|
Borrowings and Credit Arrangements - Convertible Notes and Related Equity Components (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 29, 2012
|
Sep. 29, 2012
|
|---|---|---|
|
2007 Notes [Member]
|
||
| Schedule Of Borrowings [Line Items] | ||
| Notes principal amount | $ 775,000 | $ 775,000 |
| Unamortized discount | (40,524) | (50,591) |
| Net carrying amount | 734,476 | 724,409 |
| Equity component, net of taxes | 233,353 | 233,353 |
|
2010 Notes [Member]
|
||
| Schedule Of Borrowings [Line Items] | ||
| Notes principal amount | 450,000 | 450,000 |
| Unamortized discount | (70,199) | (74,062) |
| Net carrying amount | 379,801 | 375,938 |
| Equity component, net of taxes | 60,054 | 60,054 |
|
2012 Notes [Member]
|
||
| Schedule Of Borrowings [Line Items] | ||
| Notes principal amount | 500,000 | 500,000 |
| Unamortized discount | (39,973) | (41,687) |
| Net carrying amount | 460,027 | 458,313 |
| Equity component, net of taxes | $ 49,195 | $ 49,195 |