Note 2 New Accounting Pronouncement (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 08, 2019	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017	Sep. 30, 2018
Accounting Standard Update [Line Items]
Contract assets		$ 396,300	$ 0
Goodwill impairment		0	30,610	$ 0
Goodwill		28,516	28,516	$ 59,126
Inventories		$ 900,557	$ 1,374,004
Accounting Standards Update 2014-09 [Member]
Accounting Standard Update [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets					$ 28,000
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Accounting Standard Update [Line Items]
Contract assets					376,000
Inventories					$ 350,000
Accounting Standards Update 2016-02 [Member]
Accounting Standard Update [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adoption Date		Sep. 29, 2019
Forecast [Member] | Accounting Standards Update 2016-02 [Member] | Minimum
Accounting Standard Update [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 55,000
Forecast [Member] | Accounting Standards Update 2016-02 [Member] | Maximum
Accounting Standard Update [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 65,000