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CASH, CASH EQUIVALENTS, RESTRICTED CASH AND SHORT-TERM INVESTMENTS
 9 Months Ended
Jul. 03, 2021
Cash and Cash Equivalents [Abstract]  
CASH, CASH EQUIVALENTS, RESTRICTED CASH AND SHORT-TERM INVESTMENTS CASH, CASH EQUIVALENTS, AND SHORT-TERM INVESTMENTS
Cash equivalents consist of instruments with remaining maturities of three months or less at the date of purchase. In general, these investments are free of trading restrictions.
Cash, cash equivalents, and short-term investments consisted of the following as of July 3, 2021:
(in thousands)Amortized
Cost		Unrealized
Gains		Unrealized
Losses		Estimated
Fair Value
Current assets:
Cash$176,976 $— $— $176,976 
Cash equivalents:
Money market funds (1)
82,034 — (18)82,016 
Time deposits (2)
30,007 — — 30,007 
Deposits (2)
99,000 — — 99,000 
Total cash and cash equivalents$388,017 $— $(18)$387,999 
Short-term investments (2):
Time deposits 247,000 — — 247,000 
Total short-term investments$247,000 $— $— $247,000 
Total cash, cash equivalents and short-term investments$635,017 $— $(18)$634,999 
(1)The fair value was determined using unadjusted prices in active, accessible markets for identical assets, and as such they were classified as Level 1 assets in the fair value hierarchy.
(2)Fair value approximates cost basis.
Cash, cash equivalents and short-term investments consisted of the following as of October 3, 2020:
(in thousands)Amortized
Cost		Unrealized
Gains		Unrealized
Losses		Estimated
Fair Value
Current assets:
Cash$42,997 $— $— $42,997 
Cash equivalents:
Money market funds (1)
105,133 — (10)105,123 
Time deposits (2)
40,007 — — 40,007 
Total cash and cash equivalents$188,137 $— $(10)$188,127 
Short-term investments (2):
Time deposits 243,000 — — 243,000 
Deposits (3)
99,000 — — 99,000 
Total short-term investments$342,000 $— $— $342,000 
Total cash, cash equivalents and short-term investments$530,137 $— $(10)$530,127 
(1)The fair value was determined using unadjusted prices in active, accessible markets for identical assets, and as such they were classified as Level 1 assets in the fair value hierarchy.
(2)Fair value approximates cost basis.
(3)Represents deposits that require a notice period of three months for withdrawal.