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CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Thousands	Jun. 27, 2015	Sep. 27, 2014	Jun. 28, 2014	Sep. 28, 2013
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	$ 475,925	$ 587,981	$ 597,457	$ 521,788
Cash and cash equivalents, Estimated Fair Value	475,925	587,981
Short-term investments, Amortized Cost		9,105
Short-term investments, Estimated Fair Value		9,105
Total cash, cash equivalents and short-term investments, Amortized Cost		597,086
Total cash, cash equivalents and short-term investments, Estimated Fair Value		597,086
Cash [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	131,589	130,668
Cash and cash equivalents, Estimated Fair Value	131,589	130,668
Cash equivalents, Money market funds [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	185,958	295,529
Cash and cash equivalents, Estimated Fair Value	185,958	295,529
Cash equivalents, Time deposits [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	158,378	132,284
Cash and cash equivalents, Estimated Fair Value	158,378	132,284
Commercial Paper [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	0	29,500
Cash and cash equivalents, Estimated Fair Value	$ 0	29,500
Short-term investments, Time deposits [Member]
Cash and Cash Equivalents [Line Items]
Short-term investments, Amortized Cost		9,105
Short-term investments, Estimated Fair Value		$ 9,105

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