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v3.20.1

Long-term debt (Narrative) (Details) $ in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 CAD ($) | Dec. 31, 2018 CAD ($) | Dec. 31, 2017 CAD ($) share | Dec. 31, 2016 CAD ($) share | Dec. 31, 2019 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Revolving credit facility | $ 19,482 | $ 30,000 |  |  |
Convertible debenture | 350,000 | 350,000 |  |  |
Accordion feature | $ 100,000 | $ 100,000 |  |  |
London Interbank Offered Rates Libor [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Borrowings, interest rate | 4.22% |  |  |  | 4.22%
Applicable margin facility | $ 19,500 |  |  |  | $ 15.0
Convertible debenture (2016) [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Convertible debenture | 50,000 |  |  | $ 50,000 |
Borrowings, interest rate |  |  |  | 4.00% |
Conversion price | share |  |  |  | 19.08 |
Convertible debenture (2017) [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Convertible debenture |  |  | $ 300,000 |  |
Borrowings, interest rate |  |  | 4.00% |  |
Conversion price | share |  |  | 22.89 |  |
Revolving credit facility [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Revolving credit facility | 400,000 |  |  |  |
Bottom of range [member] | Revolving credit facility [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Revolving credit facility | 350,000 |  |  |  |
Top of range [member] | Revolving credit facility [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Revolving credit facility | $ 500,000 |  |  |  |

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- Definition The amount of loans received from banks that have not been secured by collateral. [Refer: Loans received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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