XML 64 R44.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Material Accounting Policy Information (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
List Of Accounting Policies [Abstract] |
Schedule of Estimated Useful Lives and Depreciation Calculation Methods | Depreciation is calculated over the assets' estimated useful lives on a straight-line basis as follows:
Engineering equipment | 5 to 10 years | straight-line
Office equipment | 5 to 10 years | straight-line
Leasehold improvements |  | straight-line over term of lease to a maximum of 15 years or the improvement’s economic life
Other | 5 to 50 years | straight-line

X
- Definition The description of the entity's material accounting policy information for depreciation expense. [Refer: Depreciation and amortisation expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 117 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_117&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition List Of Accounting Policies + References No definition available. + Details
Name: | stn_ListOfAccountingPoliciesAbstract
Namespace Prefix: | stn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration