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Finance costs (Tables) | 12 Months Ended
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Dec. 31, 2020
Finance Costs [Abstract] |
Schedule of finance costs |
|  | 2020 |  |  | 2019
Interest on long-term debt | $ | 43,340 |  | $ | 63,136
Unwinding of discount on provisions [note 15] |  | 14,403 |  |  | 20,789
Redemption of Series E debentures [note 13] |  | 24,439 |  |  | -
Other charges |  | 13,951 |  |  | 14,697
Total | $ | 96,133 |  | $ | 98,622

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