Note 8 Restructuring (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 30, 2019 USD ($)	Mar. 31, 2018 USD ($)	Sep. 29, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and other costs	$ 3,012	$ (8,591)	$ 5,151	$ 14,951
Restructuring Reserve	16,000		16,000		$ 24,000
IMS
Restructuring Cost and Reserve [Line Items]
Restructuring and other costs			(4,000)	10,000
CPS
Restructuring Cost and Reserve [Line Items]
Restructuring and other costs			9,000	5,000
Q1 FY18 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense (Recovery) prior to reimbursement	1,127	1,465	4,624	24,766
Expected Severance Reimbursement			$ 0	10,000
3rd Party Reimbursement	0	10,000
Initiation Date			Dec. 30, 2017
Completion Date			Dec. 31, 2019
Expected Number of Positions Eliminated			2,900
Other Receivables	7,000		$ 7,000
Restructuring and other costs	1,127	(8,535)	4,624	14,766
Q1 FY18 Plan [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	359	1,191	752	24,492
Q1 FY18 Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	768	274	3,872	274
Other plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other costs	$ 1,885	$ (56)	$ 527	$ 185