XML 117 R89.htm IDEA: XBRL DOCUMENT v3.8.0.1

Cash and Cash Equivalents - Additional Information (Detail) CAD in Millions, $ in Millions	Dec. 31, 2017 CAD	Dec. 31, 2017 USD ($)	Dec. 31, 2016 CAD	Dec. 31, 2016 USD ($)
Business combinations [member]
Disclosure of cash and cash equivalents [line items]
Escrow account	CAD 7.9	$ 6.2	CAD 8.8	$ 6.6

X

- Definition

The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_RestrictedCashAndCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Disclosure of cash and cash equivalents.

+ References

No definition available.

+ Details

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

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=ifrs-full_BusinessCombinationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: