Restructuring Plan - Summary of Restructuring and Abandonment Costs by Major Cost-type Incurred (Parenthetical) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
Mar. 31, 2023	Sep. 30, 2023
Restructuring and Related Activities [Abstract]
Non-recurring write-offs for operating lease right-of-use assets and accelerated depreciation of the related leasehold improvements	$ 4.8	$ 4.8

Non recurring write offs operating lease right of use assets and accelerated depreciation leasehold improvements.

No definition available.

Name:	sono_NonRecurringWriteOffsOperatingLeaseRightOfUseAssetsAndAcceleratedDepreciationLeaseholdImprovements
Namespace Prefix:	sono_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration