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GOODWILL AND INTANGIBLE ASSETS (Net intangible assets) (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 19, 2021 | Oct. 01, 2022 | Oct. 02, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |
Net intangible assets |  | $ 31,939 | $ 42,752
In-process research and development |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Net intangible assets |  | $ 0 | 8,795
Average estimated useful lives (in years) |  | 6 years |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | $ (7,900) |
Developed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets |  | 89,017 | 90,427
Accumulated amortization |  | (58,636) | (58,494)
Net intangible assets |  | 30,381 | 31,933
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | 7,900 |
Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets |  | 33,515 | 36,114
Accumulated amortization |  | (33,515) | (36,114)
Net intangible assets |  | 0 | 0
Trade and brand name |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets |  | 6,945 | 7,374
Accumulated amortization |  | (6,945) | (7,275)
Net intangible assets |  | 0 | 99
Other intangible assets |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross intangible assets |  | 4,700 | 4,700
Accumulated amortization |  | (3,142) | (2,775)
Net intangible assets |  | $ 1,558 | $ 1,925
Other intangible assets | Uniqarta |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 6 years |  |
Minimum | Developed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 6 years |
Minimum | Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 5 years |
Minimum | Trade and brand name |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 7 years |
Minimum | Other intangible assets |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 1 year 10 months 24 days |
Maximum | Developed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 15 years |
Maximum | Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 6 years |
Maximum | Trade and brand name |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 8 years |
Maximum | Other intangible assets |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Average estimated useful lives (in years) |  | 6 years |

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