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v3.19.1

Supplemental cash flow information (Tables) | 12 Months Ended
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Dec. 31, 2018
Cash Flow Statement [Abstract] |
Changes in non-cash working capital | Changes in non-cash working capital for the years ended December 31, 2018 and 2017 are as follows:
For the years ended December 31 | 2018 |  | 2017 |
Changes in non-cash working capital: |  |
Trade and other receivables | $ | 22,068 |  | $ | (37,033 | )
Inventories | (83,495 | ) | (23,136 | )
Prepaid expenses | (5,993 | ) | (5,702 | )
Trade, other payables and accrued liabilities, including long-term payables included in other long-term liabilities | (9,403 | ) | 103,601 |
| (76,823 | ) | 37,730 |
Adjustments for items not having a cash effect and working capital changes relating to taxes and interest paid | 81,877 |  | (89,445 | )
Changes in non-cash working capital | $ | 5,054 |  | $ | (51,715 | )
These changes relate to the following activities: |  |
Operating | $ | 5,998 |  | $ | (49,368 | )
Financing | — |  | — |
Investing | (944 | ) | (2,347 | )
Changes in non-cash working capital | $ | 5,054 |  | $ | (51,715 | )
Reconciliation of liabilities arising from financing activities | Reconciliation of movements in liabilities to cash flows arising from financing activities:
| Long term debt (note 8) |  | Finance lease obligations (note 9) |
Balance at December 31, 2017 | $ | 1,502,271 |  | $ | 204,242 |
Changes from financing cash flows |  |
Repayment of long-term debt and financing fees | (213,622 | ) | — |
Proceeds from limited recourse debt | 166,000 |  | — |
Payment of finance lease liabilities | — |  | (8,293 | )
Total changes from financing cash flows | $ | (47,622 | ) | $ | (8,293 | )
Liability-related other changes |  |
Finance costs | $ | 3,637 |  | $ | — |
New finance leases | — |  | 2,425 |
Total liability-related other changes | $ | 3,637 |  | $ | 2,425 |
Balance at December 31, 2018 | $ | 1,458,286 |  | $ | 198,374 |

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