[Line Items] for Incomes Taxes [Table]

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Jun. 29, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Sep. 26, 2020
Incomes Taxes [Line Items]
Provision (benefit) for income taxes	$ 12,148		$ (1,448)	$ 13,581	$ (1,676)
Effective tax rate	13.70%		(2.60%)	14.40%	(3.20%)
Unrecognized tax benefits	$ 39,000			$ 39,000
Unrecognized tax benefits that would impact effective tax rate	38,800			38,800
Unrecognized tax benefits, gross increase to current year unrecognized tax benefits	100	$ 300
Unrecognized tax benefits, gross decrease to prior year unrecognized tax benefits	1,100
Balance of accrued interest and penalties, net of tax	$ 3,400			$ 3,400
Forecast
Incomes Taxes [Line Items]
Unrecognized tax benefits, gross decrease to current year unrecognized tax benefits						$ 3,000