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v3.22.2

Leases - Additional Information (Detail) | Jun. 30, 2022 USD ($)
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Leases [Abstract] |
Leases not yet commenced | $ 0

X
- Definition Operating lease liability not yet commenced value. + References No definition available. + Details
Name: | scl_OperatingLeaseLiabilityNotYetCommencedValue
Namespace Prefix: | scl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration