FAIR VALUE MEASUREMENTS (Fair value of financial assets and liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Sep. 28, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	$ 597,457	$ 521,788
Investments	2,600	3,252
Total Assets	600,057	525,040
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Assets	600,057	525,040
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Assets	0	0
Fair Value, Measurements, Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Assets	0	0
Fair Value, Measurements, Recurring [Member] \| Total [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Assets	600,057	525,040
Fair Value, Measurements, Recurring [Member] \| Cash [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	137,854	113,295
Fair Value, Measurements, Recurring [Member] \| Cash [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Cash [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Cash [Member] \| Total [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	137,854	113,295
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Money market funds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	260,885	226,272
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Money market funds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Money market funds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Money market funds [Member] \| Total [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	260,885	226,272
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Time deposits [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	198,718	182,221
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Time deposits [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Time deposits [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Cash equivalents, Time deposits [Member] \| Total [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents	198,718	182,221
Fair Value, Measurements, Recurring [Member] \| Short-term investments, Time deposits [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investments	2,600	3,252
Fair Value, Measurements, Recurring [Member] \| Short-term investments, Time deposits [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investments	0	0
Fair Value, Measurements, Recurring [Member] \| Short-term investments, Time deposits [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investments	0	0
Fair Value, Measurements, Recurring [Member] \| Short-term investments, Time deposits [Member] \| Total [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investments	$ 2,600	$ 3,252