GOODWILL AND INTANGIBLE ASSETS - Changes in the Carrying Amount of Goodwill by Reporting Segment (Details) $ in Millions	9 Months Ended
Jul. 04, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill at beginning of period	$ 1,332.0
Foreign currency impact	14.2
Goodwill at end of period	1,583.9
Armitage
Goodwill [Roll Forward]
Goodwill, acquired during period	90.7
Rejuvenate acquisition and integration
Goodwill [Roll Forward]
Goodwill, acquired during period	147.0
HHI
Goodwill [Roll Forward]
Goodwill at beginning of period	704.8
Foreign currency impact	8.4
Goodwill at end of period	713.2
HHI \| Armitage
Goodwill [Roll Forward]
Goodwill, acquired during period	0.0
HHI \| Rejuvenate acquisition and integration
Goodwill [Roll Forward]
Goodwill, acquired during period	0.0
GPC
Goodwill [Roll Forward]
Goodwill at beginning of period	431.6
Foreign currency impact	5.8
Goodwill at end of period	528.1
GPC \| Armitage
Goodwill [Roll Forward]
Goodwill, acquired during period	90.7
GPC \| Rejuvenate acquisition and integration
Goodwill [Roll Forward]
Goodwill, acquired during period	0.0
H&G
Goodwill [Roll Forward]
Goodwill at beginning of period	195.6
Foreign currency impact	0.0
Goodwill at end of period	342.6
H&G \| Armitage
Goodwill [Roll Forward]
Goodwill, acquired during period	0.0
H&G \| Rejuvenate acquisition and integration
Goodwill [Roll Forward]
Goodwill, acquired during period	$ 147.0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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