XML 60 R50.htm IDEA: XBRL DOCUMENT
v3.22.1

Fair Value Measurements - Investment Impairments and Credit Loss Reserves (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
May 02, 2021 | May 01, 2022 | Jan. 30, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Credit loss reserve for held-to-maturity debt securities and available for sale debt securities |  | $ 4,500,000 | $ 4,500,000
Increase in credit loss reserve for available-for-sale and held-to-maturity debt securities | $ 200,000 |  |

X
- Definition Debt Securities, Allowance For Credit Loss + References No definition available. + Details
Name: | smtc_DebtSecuritiesAllowanceForCreditLoss
Namespace Prefix: | smtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale and Held To Maturity, Allowance for Credit Loss, Period Increase (Decrease) + References No definition available. + Details
Name: | smtc_DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLossPeriodIncreaseDecrease
Namespace Prefix: | smtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration