XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.21.1

Share-Based Compensation - Narrative (Details) | 3 Months Ended
--- | ---
May 02, 2021 $ / shares shares
Market Performance-based RSUs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Equity awards granted (in units) | shares | 81,688
Restricted Stock Units | Employees |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Equity awards granted (in units) | shares | 134,944
Market Performance Restricted Stock Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Equity awards granted (in units) | shares | 54,928
Grant date fair value per unit (in dollars per share) | $ 49.55
Performance period | 30 days
Target share price (in dollars per share) | $ 95.00
Performance Period One | Market Performance-based RSUs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance period | 1 year
Award vesting rights, percentage | 33.33%
Grant date fair value per unit (in dollars per share) | $ 67.28
Performance Period Two | Market Performance-based RSUs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance period | 2 years
Award vesting rights, percentage | 33.33%
Grant date fair value per unit (in dollars per share) | $ 83.94
Performance Period Three | Market Performance-based RSUs |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance period | 3 years
Award vesting rights, percentage | 33.33%
Grant date fair value per unit (in dollars per share) | $ 95.52

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Performance Shares, Performance Period + References No definition available. + Details
Name: | smtc_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceSharesPerformancePeriod
Namespace Prefix: | smtc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Period + References No definition available. + Details
Name: | smtc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsPerformancePeriod
Namespace Prefix: | smtc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Minimum Closing Share Price Used to Determine Market Condition + References No definition available. + Details
Name: | smtc_SharebasedCompensationArrangementbySharebasedPaymentAwardMinimumClosingSharePriceUsedtoDetermineMarketCondition
Namespace Prefix: | smtc_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GranteeStatusAxis=us-gaap_ShareBasedPaymentArrangementEmployeeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=smtc_MarketPerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |