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Fair Value Measurements (Details) - Money Market Funds - USD ($) $ in Thousands	Jan. 02, 2021	Oct. 03, 2020
Assets:
Money market funds (cash equivalents)	$ 391,388	$ 281,380
Level 1
Assets:
Money market funds (cash equivalents)	391,388	281,380
Level 2
Assets:
Money market funds (cash equivalents)	0	0
Level 3
Assets:
Money market funds (cash equivalents)	$ 0	$ 0

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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