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Impairment and Other Charges (Gains), Net - Summary (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 04, 2021	Jul. 05, 2020	Jul. 04, 2021	Jul. 05, 2020
Impairment, Disposition of Property and Equipment, and Restaurant Closing Costs [Line Items]
Costs of closed restaurants and other (1)	$ 622	$ 890	$ 2,086	$ 1,322
Restructuring costs	0	2	4	1,165
Losses (gains) on disposition of property and equipment, net			(1,754)	(10,386)
Accelerated depreciation	123	62	1,362	62
Impairment and other charges	922	738	1,698	(7,837)
Continuing Operations
Impairment, Disposition of Property and Equipment, and Restaurant Closing Costs [Line Items]
Losses (gains) on disposition of property and equipment, net	$ 177	$ (216)	$ (1,754)	(10,386)
Gain related to sale of property				$ 10,800

X

- Definition

Amount of accelerated depreciation recognized in the period due to a long-lived asset being replaced or disposed of prior to the end of its useful life. Not associated with a disposal group or restructuring.

+ References

No definition available.

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Impairment And Other Costs Net

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Impairment, disposition of property and equipment, and restaurant closing costs [Line Items]

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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