Note 10 Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Sep. 30, 2017
Deferred tax assets:
U.S. net operating loss carryforwards	$ 218,710	$ 338,492
Foreign net operating loss carryforwards	129,866	186,684
Acquisition related intangibles	15,099	13,913
Accruals not currently deductible	45,922	55,582
Property, plant and equipment	22,596	20,746
Tax credit carryforwards	13,825	11,832
Reserves not currently deductible	14,420	21,710
Stock compensation expense	13,645	21,151
Unrealized losses	3,145	4,475
Other	2,789	3,949
Valuation allowance	(113,559)	(163,267)
Total deferred tax assets	366,458	515,267
Deferred tax liabilities on foreign earnings	(23,986)	(36,027)
Other deferred tax liabilities	(3,802)	(8,140)
Recorded as:
Non-current deferred tax assets	344,124	476,554
Non-current deferred tax liabilities	(5,454)	(5,454)
Net deferred tax assets	$ 338,670	$ 471,100