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Supplemental cash flow information | 12 Months Ended
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Dec. 31, 2020
Cash Flow Statement [Abstract] |
Supplemental cash flow information | Supplemental cash flow information: a) Changes in non-cash working capital: Changes in non-cash working capital for the years ended December 31, 2020 and 2019 are as follows:
For the years ended December 31 | 2020 | 2019
Changes in non-cash working capital: |  |
Trade and other receivables | $ | 76,721 |  | $ | 25,847 |
Inventories | (27,644) |  | 106,907 |
Prepaid expenses | 4,059 |  | (5,264) |
Trade, other payables and accrued liabilities, including long-term payables included in other long-term liabilities | 107,199 |  | (123,660) |
| 160,335 |  | 3,830 |
Adjustments for items not having a cash effect and working capital changes relating to taxes and interest paid | (43,259) |  | 17,107 |
Changes in non-cash working capital | $ | 117,076 |  | $ | 20,937 |
These changes relate to the following activities: |  |
Operating | $ | 64,923 |  | $ | 9,426 |
Investing | 52,153 |  | 11,511 |
Changes in non-cash working capital | $ | 117,076 |  | $ | 20,937 |
b) Reconciliation of movements in liabilities to cash flows arising from financing activities:
| Long term debt (note 8) |  |  | Lease obligations (note 9) |
Balance at December 31, 2019 | $ | 1,768,853 |  |  |  | $ | 718,505 |  |
Changes from financing cash flows |  |  |  |  |
Repayment of long-term debt and financing fees | (289,698) |  |  |  | — |  |
Net proceeds on issue of long-term debt | 865,415 |  |  |  | — |  |
Draw on revolving credit facility | 300,000 |  |  |  | — |  |
Repayment of revolving credit facility | (300,000) |  |  |  | — |  |
Payment of lease obligations | — |  |  |  | (106,834) |  |
Proceeds from other limited recourse debt | 12,839 |  |  |  |  |
Total changes from financing cash flows | 588,556 |  |  |  | (106,834) |  |
Liability-related other changes |  |  |  |  |
Finance costs | 2,562 |  |  |  | — |  |
New lease obligations | — |  |  |  | 108,763 |  |
Other | 3,401 |  |  |  | 1,800 |  |
Total liability-related other changes | 5,963 |  |  |  | 110,563 |  |
Balance at December 31, 2020 | $ | 2,363,372 |  |  |  | $ | 722,234 |  |

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- Definition The entire disclosure for a statement of cash flows. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Section Presentation of a statement of cash flows -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IAS07_g10-17_TI -URIDate 2020-01-01 + Details
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