XML 194 R167.htm IDEA: XBRL DOCUMENT v3.10.0.1

Investment Tax Credit - Additional Information (Detail) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Investment tax credits [abstract]
Investment tax credits	$ 7.3	$ 9.6

X

- Definition

Investment tax credits used to reduce administrative and marketing expenses.

+ References

No definition available.

+ Details

Name:	stn_InvestmentTaxCredits
Namespace Prefix:	stn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Investment tax credits [abstract]

+ References

No definition available.

+ Details

Name:	stn_InvestmentTaxCreditsAbstract
Namespace Prefix:	stn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration