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Long term debt - Schedule of Credit Facilities (Details) - Credit facility - CAD CAD in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total credit facilities	CAD 32,000	CAD 39,572
Less: current portion	0	(8,246)
Credit facility, noncurrent	32,000	31,326
Term loan
Debt Instrument [Line Items]
Total credit facilities	0	28,572
Revolver
Debt Instrument [Line Items]
Total credit facilities	CAD 32,000	CAD 11,000

X

- Definition

Long-term Debt, Gross, Current

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Long-term Debt, Gross, Non-current

+ References

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+ Details

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X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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X

- Details

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X

- Details

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