Note 3 Other Nonoperating Income (Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Components of Other Income (Expense), Net, Nonoperating [Line Items]
Other income, net	$ 7,682	$ 4,063	$ 767
Foreign exchange gains / (losses)
Components of Other Income (Expense), Net, Nonoperating [Line Items]
Other income, net	4,709	(415)	681
Bargain purchase gain, net of tax
Components of Other Income (Expense), Net, Nonoperating [Line Items]
Other income, net	0	1,642	0
Other, net
Components of Other Income (Expense), Net, Nonoperating [Line Items]
Other income, net	$ 2,973	$ 2,836	$ 86