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INCOME TAXES (Effective income tax rate reconciliation) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2023 | Oct. 01, 2022 | Oct. 02, 2021
Income Tax Disclosure [Abstract] |  |  |
Expected income tax provision based on the U.S. federal statutory tax rate | $ 15,162 | $ 100,212 | $ 86,915
Effect of earnings of foreign subsidiaries subject to different tax rates | (8,448) | (17,936) | (15,028)
Benefit from tax incentives | (11,198) | (50,113) | (45,501)
Benefit from research and development tax credits | (4,038) | (2,995) | (2,705)
Benefit from foreign tax credits | (7,834) | (26,021) | (20,281)
Valuation allowance | 3,127 | (5,830) | (11,620)
Foreign operations (Deemed income, taxes on undistributed foreign earnings, and withholding taxes) | 24,450 | 45,421 | 52,414
Goodwill impairment | 2,517 | 0 | 0
Other, net | 1,315 | 705 | 3,101
Provision for income taxes | $ 15,053 | $ 43,443 | $ 47,295
Effective tax rate | 20.80% | 9.10% | 11.40%

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