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Balance Sheet Components -Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 27, 2026	Jun. 28, 2025
Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning of period	$ 81,225	$ 82,877
Recognition of revenue included in beginning of period deferred revenue	(16,774)	(15,041)
Revenue deferred, net of revenue recognized on contracts in the respective period	16,053	15,129
Deferred revenue, end of period	$ 80,504	$ 82,965

X

- Definition

Contract With Customer, Liability, Revenue Deferred Net of Revenue Recognized On Contracts

+ References

No definition available.

+ Details

Name:	sono_ContractWithCustomerLiabilityRevenueDeferredNetOfRevenueRecognizedOnContracts
Namespace Prefix:	sono_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

ContractwithCustomerLiabilityRollForward

+ References

No definition available.

+ Details

Name:	sono_ContractwithCustomerLiabilityRollForward
Namespace Prefix:	sono_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

+ Details

Name:	us-gaap_ContractWithCustomerLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration