Note 10 Income (Loss) Before Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Income Tax Disclosure [Abstract]
Domestic	$ 16,215	$ 128,493	$ 138,138
Foreign	81,324	84,987	66,479
Income before income taxes	97,539	213,480	204,617
Federal:
Current	(122)	(2,524)	490
Deferred	170,994	37,543	(4,550)
State:
Current	32	1,648	(265)
Deferred	(3,672)	4,204	(5,141)
Foreign:
Current	20,287	37,076	32,427
Deferred	5,553	(3,300)	(6,182)
Total provision for income taxes	$ 193,072	$ 74,647	$ 16,779