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Credit Facilities - Bank Loan (Details) $ in Thousands, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 CAD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2020 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |
Secured bank loans received | $ 505,171 |  | $ 649,221 |
Bank loan - U.S. dollar denominated |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Secured bank loans received | 156,332 |  | 140,815 |
Credit facilities - Canadian dollar denominated |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Secured bank loans received | 350,182 |  | 510,358 |
Principal |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Secured bank loans received | 506,514 |  | 651,173 |
Changes in reported amount of U.S. denominated debt | 12,600 |  |  |
Principal | Bank loan - U.S. dollar denominated |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Secured bank loans received |  | $ 123.5 |  | $ 110.4
Changes in reported amount of U.S. denominated debt | 700 |  |  |
Principal | Credit facilities - Canadian dollar denominated |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Net draws | 145,300 |  |  |
Unamortized debt issuance costs |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Secured bank loans received | $ (1,343) |  | $ (1,952) |

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