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Long term debt - Schedule of Long Term Debt (Details) - CAD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Long-term Debt, Excluding Current Maturities [Abstract] |  |
Long-term debt, gross | $ 357,854 | $ 331,957
Unamortized deferred financing costs | (2,196) | (3,896)
Less: current portion of long-term debt | (16,307) | (18,514)
Long-term portion of debt | 341,547 | 313,443
Long-term Debt, Fiscal Year Maturity [Abstract] |  |
2021 | 16,300 |
2022 | 16,800 |
2023 | 237,400 |
2024 | 15,100 |
2025 | 1,300 |
Credit Facility |  |
Long-term Debt, Excluding Current Maturities [Abstract] |  |
Long-term debt, gross | 220,000 | 190,000
Convertible debentures |  |
Long-term Debt, Excluding Current Maturities [Abstract] |  |
Long-term debt, gross | 55,000 | 94,031
Mortgages |  |
Long-term Debt, Excluding Current Maturities [Abstract] |  |
Long-term debt, gross | 21,206 | 21,739
Financing obligations |  |
Long-term Debt, Excluding Current Maturities [Abstract] |  |
Long-term debt, gross | 51,118 | 15,435
Promissory notes |  |
Long-term Debt, Excluding Current Maturities [Abstract] |  |
Long-term debt, gross | $ 12,726 | $ 14,648

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- 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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=120398452&loc=d3e534808-122878 + Details
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