Note 5 Leases (Detail) - USD ($) $ in Thousands		Apr. 03, 2021	Oct. 03, 2020
Asset and Liabilities, Lessee [Line Items]
Operating Lease, Right Of Use Asset, Accumulated Amortization		$ 21,000	$ 16,000
Operating Lease, Liability		$ 51,881
Operating Lease, Weighted Average Remaining Lease Term		6 years 8 months 1 day	6 years 10 months 17 days
Operating Lease, Weighted Average Discount Rate, Percent		2.98%	3.13%
Other Assets [Member]
Asset and Liabilities, Lessee [Line Items]
Operating Lease, Right-of-Use Asset	[1]	$ 49,988	$ 52,552
Accrued Liabilities [Member]
Asset and Liabilities, Lessee [Line Items]
Operating Lease, Liability, Current		16,780	16,659
Other Noncurrent Liabilities [Member]
Asset and Liabilities, Lessee [Line Items]
Operating Lease, Liability, Noncurrent		35,101	37,015
Liabilities, Total [Member]
Asset and Liabilities, Lessee [Line Items]
Operating Lease, Liability		$ 51,881	$ 53,674

[1] Net of accumulated amortization of $21 million and $16 million as of April 3, 2021 and October 3, 2020, respectively.