Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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The increase (decrease) during the period in book value of long-lived assets that the reporting entity plans to sell within one year (or one business cycle).

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019	Sep. 29, 2019
Property and Equipment
Property and equipment, gross	$ 146,676		$ 146,676		$ 149,904
Accumulated depreciation	(111,190)		(111,190)		(110,463)
Property and equipment, net	35,486		35,486		39,441
Depreciation expense related to property and equipment	3,100	$ 4,200	6,400	$ 8,500
Assets held-for-sale, current	4,100		4,100		5,400
Decline in assets held-for-sale			1,300
Gain on sale of property, plant and equipment			3,000
Equipment, furniture and fixtures
Property and Equipment
Property and equipment, gross	112,803		112,803		114,652
Leasehold improvements
Property and Equipment
Property and equipment, gross	33,495		33,495		34,881
Land and buildings
Property and Equipment
Property and equipment, gross	$ 378		$ 378		$ 371