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v3.22.2.2

Property and Equipment - Additional Information (Detail) | 12 Months Ended
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Jun. 25, 2022
Machinery and Equipment [Member] |
Property Plant And Equipment [Line Items] |
Construction In Progress | 12 months

X
- Definition Construction in progress + References No definition available. + Details
Name: | syna_ConstructionInProgress
Namespace Prefix: | syna_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MachineryAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |