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GOODWILL AND INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 30, 2022 | Dec. 31, 2021 | Sep. 30, 2022
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 134.3 |  | $ 131.9
Accumulated Amortization | (102.6) |  | (98.3)
Net Carrying Amount | 31.7 |  | 33.6
Amortization of intangible assets | 3.4 | $ 3.8 |
Acquired existing technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 71.5 |  | 70.0
Accumulated Amortization | (52.3) |  | (49.9)
Net Carrying Amount | 19.2 |  | 20.1
Patents, licenses and other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 12.5 |  | 12.3
Accumulated Amortization | (11.8) |  | (11.6)
Net Carrying Amount | 0.7 |  | 0.7
Customer contracts and supplier relationship |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 50.3 |  | 49.6
Accumulated Amortization | (38.5) |  | (36.8)
Net Carrying Amount | $ 11.8 |  | $ 12.8

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 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)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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