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Balance Sheet Components - Summary of Changes In Allowance for Sales Incentives (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 02, 2021 | Oct. 03, 2020 | Sep. 28, 2019
Allowance for Sales Incentives [Roll Forward] |  |  |
Beginning balance | $ 17,515 | $ 20,051 | $ 11,754
Charged to revenue | 95,249 | 108,843 | 87,703
Utilization of sales incentive allowance | (93,604) | (111,379) | (79,406)
Ending balance | $ 19,160 | $ 17,515 | $ 20,051

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- Definition Allowance For Sales Incentives + References No definition available. + Details
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Namespace Prefix: | sono_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Allowance For Sales Incentives, Charge To Revenue + References No definition available. + Details
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Namespace Prefix: | sono_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Allowance for Sales Incentives [Roll Forward] + References No definition available. + Details
Name: | sono_AllowanceforSalesIncentivesRollForward
Namespace Prefix: | sono_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Allowance for Sales Incentives, Utilization of Sales Incentives Allowance + References No definition available. + Details
Name: | sono_AllowanceforSalesIncentivesUtilizationofSalesIncentivesAllowance
Namespace Prefix: | sono_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration