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BALANCE SHEET COMPONENTS (Components of significant balance sheet accounts) (Details) - USD ($) $ in Thousands | Apr. 02, 2022 | Oct. 02, 2021
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Short-term investments | $ 230,000 | $ 377,000
Inventories, net: |  |
Raw materials and supplies | 117,864 | 94,493
Work in process | 70,649 | 55,866
Finished goods | 44,475 | 40,006
Inventory, gross | 232,988 | 190,365
Inventory reserves | (21,111) | (23,042)
Inventories, net | 211,877 | 167,323
Property, plant and equipment, net: |  |
Land | 2,182 | 2,182
Buildings and building improvements | 23,464 | 23,314
Leasehold improvements | 32,057 | 30,054
Data processing equipment and software | 41,419 | 40,945
Machinery, equipment, furniture and fixtures | 93,421 | 87,994
Construction in progress | 8,419 | 9,562
Property, plant and equipment, gross | 200,962 | 194,051
Accumulated depreciation | (133,918) | (126,069)
Property, plant and equipment, net | 67,044 | 67,982
Accrued expenses and other current liabilities: |  |
Accrued customer obligations (2) | 76,245 | 72,478
Wages and benefits | 38,966 | 66,531
Dividends payable | 10,110 | 8,673
Commissions and professional fees | 6,093 | 6,190
Other | 5,229 | 7,667
Severance | 0 | 31
Accrued expenses and other current liabilities | $ 136,643 | $ 161,570

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