XML 67 R134.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Fair Value Measurements - Summary of Fair Value Hierarchy for Liabilities (Detail) - Not measured at fair value in statement of financial position but for which fair value is disclosed [Member] $ in Millions	Dec. 31, 2019 CAD ($)
Disclosure of fair value measurement of liabilities [line items]
Notes payable	$ 88.7
Significant other observable inputs [member]
Disclosure of fair value measurement of liabilities [line items]
Notes payable	$ 89.5

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Notes payable.

+ References

No definition available.

+ Details

Name:	stn_NotesPayable1
Namespace Prefix:	stn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_MeasurementAxis=ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level2OfFairValueHierarchyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: