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Supplemental cash flow information | 12 Months Ended
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Dec. 31, 2018
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, 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 | )
The Company has reclassified the presentation of amounts for the year ended December 31, 2017 relating to restricted cash for debt service accounts in other cash payments from Operating activities to Financing activities. b) 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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- 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 2017-01-01 -Section Presentation of a statement of cash flows -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=sect_Presentationofastatementofcashflows&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Cash Flow Statement [Abstract] + References No definition available. + Details
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