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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) $ in Millions	6 Months Ended
	Mar. 29, 2026 USD ($)
Property, Plant and Equipment [Abstract]
Increase in non-cash operating lease assets	$ 56.0

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- Definition

Operating Lease, Right-Of-Use Asset, Increase

+ References

No definition available.

+ Details

Name:	spb_OperatingLeaseRightOfUseAssetIncrease
Namespace Prefix:	spb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration