Note 11 Income (Loss) Before Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Domestic	$ 153,696	$ 16,215	$ 128,493
Foreign	91,923	81,324	84,987
Income before income taxes	245,619	97,539	213,480
Federal:
Current	868	(122)	(2,524)
Deferred	45,910	170,994	37,543
State:
Current	2,747	32	1,648
Deferred	2,961	(3,672)	4,204
Foreign:
Current	45,929	20,287	37,076
Deferred	5,689	5,553	(3,300)
Total provision for income taxes	$ 104,104	$ 193,072	$ 74,647