Concentration risk credit risk financial intrument, maximum exposure

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Summary Of Significant Accounting Policies [Line Items]

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Nominal or face amount used to calculate payments on the derivative asset.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 29, 2017
Summary Of Significant Accounting Policies [Line Items]
Maximum credit exposure (percent)	5.00%
Advertising expense	$ 49,118	$ 49,519	$ 47,402
Transaction and re-measurement gains/losses	$ (260)	(823)	$ (74)
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets with definite lives, useful life, minimum years	3 years
Minimum [Member] \| Internal Use Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets with definite lives, useful life, minimum years	3 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets with definite lives, useful life, minimum years	18 years
Maximum [Member] \| Internal Use Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets with definite lives, useful life, minimum years	5 years
Foreign Exchange Forward [Member]
Summary Of Significant Accounting Policies [Line Items]
Notional amount of derivative	$ 29,000	$ 25,100