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Balance Sheet Components - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025	Sep. 27, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reserves for excess and obsolete inventory	$ 38.4		$ 38.4		$ 41.2
Amortization expenses	$ 1.1	$ 0.9	$ 3.2	$ 2.6

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- Definition

Reserves For Excess And Obsolete Inventory

+ References

No definition available.

+ Details

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Namespace Prefix:	sono_
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X

- Definition

Amount of amortization expense for capitalized implementation cost from hosting arrangement that is service contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-SubTopic 40
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482558/350-40-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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- References

No definition available.

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