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Intangible Assets - Additional Information (Detail) - Software licenses [member] - CAD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about intangible assets [line Items]
Software Financing Obligation	$ 16.7	$ 19.1
Non cash portion of financial leases additions	$ 8.4	$ 15.1

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- 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

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- Definition

Non cash portion of software additions.

+ References

No definition available.

+ Details

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Namespace Prefix:	stn_
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Balance Type:	debit
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- Definition

Software financing obligation.

+ References

No definition available.

+ Details

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

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- Details

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