Financing and Interest (Details) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Analysis of income and expense [abstract]
Interest on bank loan	$ 20,376	$ 15,637
Interest on long-term notes	86,431	88,681
Interest on lease obligations	610
Non-cash financing	4,735	3,854
Accretion on asset retirement obligations	13,713	10,914
Financing and interest	$ 125,865	$ 119,086

No definition available.

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- Definition

The amount of expense recognised due to the unwinding of the discount on provisions, resulting from the effect of the passage of time. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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- Definition

The amount of costs associated with financing activities of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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- Definition

The amount of interest expense on bank loans and overdrafts. [Refer: Interest expense; Bank overdrafts]

+ References

+ Details

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The amount of interest expense on debt instruments issued. [Refer: Interest expense; Debt instruments issued]

+ References

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- Definition

The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
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- Definition

The amount of finance costs that the entity does not separately disclose in the same statement or note. [Refer: Finance costs]

+ References

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