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Long term debt - Schedule of Credit Facilities (Details) - CAD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Current portion of long term debt	$ 29,996	$ 0
Long-term portion of debt	265,962	70,065
Credit facilities
Debt Instrument [Line Items]
Current portion of long term debt	1,167	0
Credit facilities | Credit facility
Debt Instrument [Line Items]
Current portion of long term debt	0	0
Long-term portion of debt	192,000	32,000
Total debt	192,000	32,000
Credit facilities | Nuna Credit Facility
Debt Instrument [Line Items]
Current portion of long term debt	1,167	0
Long-term portion of debt	1,751	0
Total debt	$ 2,918	$ 0

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
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-Topic 944
-SubTopic 210
-Section S99
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-SubTopic 10
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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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