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v3.24.3

Segment Reporting - Reconciliation of Segment Information to Income Before Provision for Income Taxes (Parenthetical) (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2024
Asia [Member] | Criminal Social Engineering Scheme [Member] |  |
Segment Reporting Information [Line Items] |  |
Social engineering expenses | $ 3,300,000 | $ 6,800,000

X
- Definition Social engineering expenses. + References No definition available. + Details
Name: | scl_SocialEngineeringExpenses
Namespace Prefix: | scl_
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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=scl_CriminalSocialEngineeringSchemeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |