XML 71 R53.htm IDEA: XBRL DOCUMENT v3.10.0.1

Goodwill (Tables)

12 Months Ended

Dec. 31, 2018

Text block [abstract]

Schedule of Reconciliation of Changes in Goodwill

		Note				December 31 2018 $				December 31 2017 $
Gross goodwill, beginning of the year							1,734.6				2,006.1
Acquisitions							96.3				16.3
Disposals			8				(120.2	)			(194.4	)
Impact of foreign exchange							88.5				(93.4	)
Gross goodwill, end of the year							1,799.2				1,734.6
Accumulated impairment losses, beginning of the year							(178.0	)			(178.0	)
Impairment of goodwill			8				(53.0	)			-
Disposals			8				53.0				-
Accumulated impairment losses, end of the year							(178.0	)			(178.0	)
Net goodwill, end of the year							1,621.2				1,556.6

Schedule of Goodwill Allocated

Goodwill was allocated to each CGU or group of CGUs as follows:

		December 31 2018 $				December 31  2017  $
Consulting Services
Canada			358.2				337.8
United States			1,003.7				917.7
Global			259.3				183.2
Construction Services			-				117.9
Allocated			1,621.2				1,556.6

Summary of Most Sensitive Key Assumptions Used for CGUs

The values assigned to the most sensitive key assumptions for the Consulting Services – Global group of CGUs are listed in the table below:

Key Assumptions		Consulting Services – Global
Operating margin rates			5.6% to 8.7%
After tax discount rate			11.2%
Terminal growth rate			3.0%
Non-cash working capital rates			20.3% to 20.5%
Average annual net revenue growth rate (2019-2023)			3.7%

X

- Definition

The disclosure of information for cash-generating units. [Refer: Cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2018-01-01
-Paragraph 134
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The disclosure of the reconciliation of changes in goodwill. [Refer: Goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2018-01-01
-Paragraph B67
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2018-03-01&anchor=para_B67_d&doctype=Appendix&seq=2
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of key assumptions used for impairment tests of individual asset or cash generating unit with significant amount of goodwill or intangible assets with indefinite useful lives [text block]

+ References

No definition available.

+ Details

Name:	stn_DisclosureOfKeyAssumptionsUsedForImpairmentTestsOfIndividualAssetOrCashGeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
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