XML 38 R28.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Stock-Based Compensation (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Compensation Expense Recorded for All Stock Options, Stock Awards and SARs | Compensation expense recorded for all stock options, stock awards and SARs was as follows:
(In thousands) |  |  |  |  |  |  |  |  |
Three Months Ended September 30 |  |  | Nine Months Ended September 30 |
2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
$ | 3,335 |  |  | $ | 1,697 |  |  | $ | 6,722 |  |  | $ | 6,248 |
Unrecognized Compensation Costs for Stock Options, Stock Awards and SARs | Unrecognized compensation costs for stock options, stock awards and SARs were as follows:
(In thousands) |  | September 30, 2018 |  |  | December 31, 2017 |
Stock options |  | $ | 1,917 |  |  | $ | 1,179 |
Stock awards |  |  | 3,987 |  |  |  | 3,737 |
SARs |  |  | 4,155 |  |  |  | 2,398 |
Share Based Payment Awards Granted in Period | The increases in unrecognized compensation costs for stock options, stock awards and SARs reflected the 2018 grants of:
|  | Shares |
Stock options |  |  | 77,038 |
Stock awards (at target) |  |  | 49,426 |
SARs |  |  | 171,131 |

X
- Definition Schedule of share based compensation arrangement by share based payment award grants in period. + References No definition available. + Details
Name: | scl_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodTableTextBlock
Namespace Prefix: | scl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized. + 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 (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration