XML 113 R96.htm IDEA: XBRL DOCUMENT
v3.22.4

Long-Term Debt - Additional Information (Details) £ in Millions, $ in Millions |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 29, 2021 CAD ($) tranche | Dec. 31, 2022 CAD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 GBP (£) | Dec. 23, 2022 GBP (£) | Dec. 31, 2021 USD ($) | Oct. 08, 2020 CAD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Borrowings, interest rate |  | 6.09% | 2.15% | 6.09% | 6.09% |  | 2.15% |
Number of tranches | tranche | 2 |  |  |  |  |  |  |
Additional revolving credit facilities amount | $ 600,000,000 |  |  |  |  |  |  |
Letter of credit outstanding |  | $ 2,600,000 | $ 5,800,000 |  |  |  |  |
Bank indebtedness |  | 65,400,000 | 7,200,000 |  |  |  |  |
Letter of credit issued and outstanding in addition |  | 66,900,000 | 76,500,000 |  |  |  |  |
Expire before 2022 |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Letter of credit issued and outstanding in addition |  | 54,600,000 | 63,700,000 |  |  |  |  |
Open-ended terms |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Letter of credit issued and outstanding in addition |  | 12,300,000 | 12,800,000 |  |  |  |  |
Senior unsecured notes |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  | $ 300,000,000
Borrowings, interest rate |  |  |  |  |  |  |  | 2.048%
Revolving credit facility |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Revolving credit facilities amount | 800,000,000 | 800,000,000 |  |  |  |  |  |
Amount available under the facility |  | 223,600,000 | 243,700,000 |  |  |  |  |
Revolving credit facility | Canadian Dollars |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Payable amount |  | 376,000,000.0 | 403,000,000.0 |  |  |  |  |
Revolving credit facility | US Dollars |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Payable amount |  | $ 157,000,000.0 | 140,300,000 | $ 116.0 |  |  | $ 111.0 |
Term loan |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Revolving credit facilities amount | 310,000,000 |  |  |  |  |  |  |
Term Loan Tranche A | Canadian Dollars |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Revolving credit facility payable | 150,000,000 |  |  |  |  |  |  |
Term Loan Tranche B | Canadian Dollars |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Revolving credit facility payable | $ 160,000,000 |  |  |  |  |  |  |
Unsecured multicurrency facility |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Borrowings, interest rate |  | 5.18% |  | 5.18% | 5.18% |  |  |
Revolving credit facilities amount | £ |  |  |  |  |  | £ 20.0 |  |
Payable amount |  | $ 24,600,000 |  |  | £ 15.0 |  |  |
Syndicated senior credit facilities | Canadian Dollars |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Bank indebtedness |  | 12,700,000 | 0 |  |  |  |  |
Syndicated senior credit facilities | US Dollars |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Bank indebtedness |  | 28,100,000 | 7,200,000 | $ 20.7 |  |  | $ 5.7 |
Notes payable |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Aggregate maturity value of notes |  | $ 62,800,000 | $ 65,300,000 |  |  |  |  |
Notes payable | Weighted average |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Borrowings, interest rate |  | 1.60% | 1.50% | 1.60% | 1.60% |  | 1.50% |
Software financing obligations |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Borrowings, interest rate |  | 5.94% | 4.69% | 5.94% | 5.94% |  | 4.69% |
Software additions acquired through software financing obligations |  | $ 19,300,000 | $ 44,400,000 |  |  |  |  |
Letter of credit |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Revolving credit facilities amount |  | 100,000,000 |  |  |  |  |  |
Surety facilities |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Bonds issued under surety facilities |  | 27,100,000 | 65,500,000 | $ 20.0 |  |  | $ 51.8 |
Surety facilities expiring before September 2026 |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |
Bonds issued under surety facilities |  | $ 18,800,000 | $ 10,100,000 |  |  |  |  |

X
- Definition The amount that has been withdrawn from an account in excess of existing cash balances. This is considered a short-term extension of credit by the bank. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BankOverdraftsClassifiedAsCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of bonds issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BondsIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 50 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_50_a&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_UndrawnBorrowingFacilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate maturity value of notes. + References No definition available. + Details
Name: | stn_AggregateMaturityValueOfNotes
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Borrowings, Payable Amount + References No definition available. + Details
Name: | stn_BorrowingsPayableAmount
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Increase (Decrease) In Borrowings + References No definition available. + Details
Name: | stn_IncreaseDecreaseInBorrowings
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Letters of credit issued and outstanding in addition. + References No definition available. + Details
Name: | stn_LettersOfCreditIssuedAndOutstandingInAddition
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Letters Of Credit Outstanding Amount + References No definition available. + Details
Name: | stn_LettersOfCreditOutstandingAmount
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of credit facility additional borrowings capacity. + References No definition available. + Details
Name: | stn_LineOfCreditFacilityAdditionalBorrowingsCapacity
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of credit facility, maximum borrowings capacity. + References No definition available. + Details
Name: | stn_LineOfCreditFacilityMaximumBorrowingsCapacity
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of tranches. + References No definition available. + Details
Name: | stn_NumberOfTranches
Namespace Prefix: | stn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revolving credit facility payable amount. + References No definition available. + Details
Name: | stn_RevolvingCreditFacilityPayableAmount
Namespace Prefix: | stn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_PastDueStatusAxis=stn_ExpireBeforeTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_PastDueStatusAxis=stn_OpenEndedTermsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SeniorUnsecuredNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SeniorRevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=stn_CanadianDollarsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=stn_USDollarsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SeniorTermLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SeniorTermLoanTrancheAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SeniorTermLoanTrancheBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_UnsecuredMulticurrencyFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SyndicatedSeniorCreditFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_NotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SoftwareFinancingObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SuretyFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=stn_SuretyFacilitiesExpiringBeforeSeptember2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |