XML 60 R42.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Investment Tax Credits | 12 Months Ended
--- | ---
Dec. 31, 2018
Text block [abstract] |
Investment Tax Credits | 35. Investment Tax Credits Investment tax credits, arising from qualifying scientific research and experimental development efforts pursuant to existing tax legislation, are recorded as a reduction of administrative and marketing expenses when there is reasonable assurance of their ultimate realization. In 2018, investment tax credits of $7.3 (2017 – $9.6) were recorded.

X
- Definition Disclosure of investment tax credits. + References No definition available. + Details
Name: | stn_DisclosureOfInvestmentTaxCreditsExplanatoy
Namespace Prefix: | stn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block [abstract] + References No definition available. + Details
Name: | stn_TextBlockAbstract
Namespace Prefix: | stn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration