XML 137 R119.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Customer Claims - Additional Information (Detail) - Surfactants [Member] | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 USD ($) Claim | Dec. 31, 2016 Claim | Dec. 31, 2016 USD ($)
Loss Contingencies [Line Items] |  |  |
Number of customer claims | Claim |  | 2 |
Insurance claims reserve amount | $ |  |  | $ 7,367,000
Claim paid | $ | $ 2,709,000 |  |
Number of claims and reversed | Claim | 1 |  |

X
- Definition Loss contingency claims reversed number. + References No definition available. + Details
Name: | scl_LossContingencyClaimsReversedNumber
Namespace Prefix: | scl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of customers claims. + References No definition available. + Details
Name: | scl_NumberOfCustomersClaims
Namespace Prefix: | scl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred and costs incurred in the claim settlement process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99382578&loc=d3e14764-158437 + Details
Name: | us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
Namespace Prefix: | us-gaap_
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_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
Name: | us-gaap_ProductWarrantyAccrualPayments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=scl_SurfactantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |