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v3.23.1

Subsequent Event (Details) - Revolving loans - Credit Agreement - Subsequent Event $ in Millions | Jun. 06, 2023 USD ($)
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Subsequent Event [Line Items] |
Debt Instrument, Covenant, Annual Amortization | 7.50%
Debt Instrument, Covenant, Non-Extended Notes And Certain Replacement Debt, Threshold | $ 50
Line Of Credit, Decrease In Maximum Borrowing Capacity | $ 100
Debt Instrument Maturity, Number Of Days Before Maturity Date If Not Extended | 91
Debt Instrument Maturity, Extension, Number Of Days After Maturity Date | 91

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- Definition Debt Instrument, Covenant, Annual Amortization + References No definition available. + Details
Name: | smtc_DebtInstrumentCovenantAnnualAmortization
Namespace Prefix: | smtc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Debt Instrument, Covenant, Non-Extended Notes And Certain Replacement Debt, Threshold + References No definition available. + Details
Name: | smtc_DebtInstrumentCovenantNonExtendedNotesAndCertainReplacementDebtThreshold
Namespace Prefix: | smtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Debt Instrument Maturity, Extension, Number Of Days After Maturity Date + References No definition available. + Details
Name: | smtc_DebtInstrumentMaturityExtensionNumberOfDaysAfterMaturityDate
Namespace Prefix: | smtc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Debt Instrument Maturity, Number Of Days Before Maturity Date If Not Extended + References No definition available. + Details
Name: | smtc_DebtInstrumentMaturityNumberOfDaysBeforeMaturityDateIfNotExtended
Namespace Prefix: | smtc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line Of Credit, Decrease In Maximum Borrowing Capacity + References No definition available. + Details
Name: | smtc_LineOfCreditDecreaseInMaximumBorrowingCapacity
Namespace Prefix: | smtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DebtInstrumentAxis=smtc_CreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |