Basis of Presentation - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Sep. 28, 2019	Jun. 29, 2019	Sep. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 495,339	$ 497,749	$ 445,632
Restricted Cash	13,536	12,952	10,924
Total Cash, cash equivalents and restricted cash	$ 508,875	$ 510,701	$ 456,556	$ 493,005

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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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Name:	us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant