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BALANCE SHEET COMPONENTS (Components of significant balance sheet accounts) (Details) - USD ($) $ in Thousands | Jul. 01, 2023 | Oct. 01, 2022
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Short-term investments | $ 310,000 | $ 220,000
Inventories, net: |  |
Raw materials and supplies | 127,216 | 118,833
Work in process | 71,052 | 40,114
Finished goods | 49,155 | 45,277
Inventory, gross | 247,423 | 204,224
Inventory reserves | (19,432) | (19,238)
Inventories, net | 227,991 | 184,986
Property, plant and equipment, net: |  |
Land | 2,182 | 2,182
Buildings and building improvements | 22,929 | 22,783
Leasehold improvements | 83,785 | 32,400
Data processing equipment and software | 37,483 | 38,223
Machinery, equipment, furniture and fixtures | 93,192 | 90,151
Construction in progress | 11,910 | 25,004
Property, plant and equipment, gross | 251,481 | 210,743
Accumulated depreciation | (137,914) | (129,835)
Property, plant and equipment, net | 113,567 | 80,908
Accrued expenses and other current liabilities: |  |
Accrued customer obligations | 52,268 | 58,916
Wages and benefits | 31,735 | 50,279
Dividends payable | 10,734 | 9,743
Commissions and professional fees | 3,825 | 5,019
Accrued leasehold renovations | 13,378 | 0
Severance | 0 | 19
Other | 8,566 | 10,565
Accrued expenses and other current liabilities | $ 120,506 | $ 134,541

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