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Investments
 6 Months Ended
Mar. 29, 2024
Investments, Debt and Equity Securities [Abstract]  
INVESTMENTS INVESTMENTS
All investments are short-term in nature and are invested in certificates of deposit, corporate bonds, commercial paper, and U.S. Treasuries and agency bonds and are classified as available-for-sale. These certificates of deposit, corporate bonds, commercial paper and U.S. Treasuries and agency bonds are owned directly by the Company and are segregated in brokerage custody accounts. The amortized cost, gross unrealized holding gains or losses and fair value of our available-for-sale investments by major investment type are summarized in the tables below (in thousands):
 March 29, 2024
 Amortized
Cost		Gross
Unrealized
Holding Gains 		Gross
Unrealized
Holding Losses		Aggregate Fair
Value
Certificates of deposit$10,980 $1 $— $10,981 
Corporate bonds243,039 36 (1,615)241,460 
Commercial paper48,589 — (60)48,529 
U.S. Treasuries and agency bonds60,460 75 (82)60,453 
Total short-term investments$363,068 $112 $(1,757)$361,423 
September 29, 2023
 Amortized
Cost		Gross
Unrealized
Holding Gains 		Gross
Unrealized
Holding Losses		Aggregate Fair
Value
Corporate bonds$145,234 $— $(2,845)$142,389 
Commercial paper176,405 — (129)176,276 
U.S. Treasuries and agency bonds21,895 18 (4)21,909 
Total short-term investments$343,534 $18 $(2,978)$340,574 
    
The contractual maturities of available-for-sale investments were as follows (in thousands):
 March 29, 2024September 29, 2023
Less than one year$219,861 $265,591 
Over one year141,562 74,983 
Total available-for-sale investments$361,423 $340,574 

We have determined that the gross unrealized losses on available for sale securities as of March 29, 2024 and September 29, 2023 are temporary in nature and/or do not relate to credit loss, and therefore there is no expense for credit losses recorded in our condensed consolidated statements of operations. Unrealized gains and losses on available-for-sale investments are reported as a separate component of stockholders’ equity within accumulated other comprehensive loss.