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GOODWILL AND INTANGIBLE ASSETS (Net intangible assets) (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Apr. 02, 2022 | Oct. 02, 2021
Schedule Of Intangible Assets [Line Items] |  |
Net intangible assets | $ 38,440 | $ 42,752
In-process research and development |  |
Schedule Of Intangible Assets [Line Items] |  |
Gross intangible assets | 8,380 | 8,795
Accumulated amortization | 0 | 0
Net intangible assets | 8,380 | 8,795
Developed technology |  |
Schedule Of Intangible Assets [Line Items] |  |
Gross intangible assets | 87,728 | 90,427
Accumulated amortization | (59,410) | (58,494)
Net intangible assets | $ 28,318 | 31,933
Developed technology | Minimum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 7 years |
Developed technology | Maximum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 15 years |
Customer relationships |  |
Schedule Of Intangible Assets [Line Items] |  |
Gross intangible assets | $ 35,321 | 36,114
Accumulated amortization | (35,321) | (36,114)
Net intangible assets | $ 0 | 0
Customer relationships | Minimum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 5 years |
Customer relationships | Maximum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 6 years |
Trade and brand name |  |
Schedule Of Intangible Assets [Line Items] |  |
Gross intangible assets | $ 7,243 | 7,374
Accumulated amortization | (7,243) | (7,275)
Net intangible assets | $ 0 | 99
Trade and brand name | Minimum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 7 years |
Trade and brand name | Maximum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 8 years |
Other intangible assets |  |
Schedule Of Intangible Assets [Line Items] |  |
Gross intangible assets | $ 4,700 | 4,700
Accumulated amortization | (2,958) | (2,775)
Net intangible assets | $ 1,742 | $ 1,925
Other intangible assets | Minimum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 1 year 10 months 24 days |
Other intangible assets | Maximum |  |
Schedule Of Intangible Assets [Line Items] |  |
Estimated useful life | 6 years |

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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