XML 97 R66.htm IDEA: XBRL DOCUMENT
v3.19.3

Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) $ in Thousands | Jan. 01, 2019 USD ($)
--- | ---
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from Tax Act | $ 5,325

X
- Definition Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act. + References No definition available. + Details
Name: | scl_TaxCutsAndJobsAct2017ReclassificationFromAOCIToRetainedEarningsTaxEffect
Namespace Prefix: | scl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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