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Mineral Properties, Plant and Equipment | 12 Months Ended
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Dec. 31, 2019
Text Block [Abstract] |
Mineral Properties, Plant and Equipment |
10. | MINERAL PROPERTIES, PLANT AND EQUIPMENT
|  | Mineral properties |  |  | Plant and equipment |  |  | Pre- development assets |  |  | Construction in-progress |  |  | Other |  |  | Total |
Cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance – December 31, 2017 |  | $ | 72,592 |  |  | $ | 47,873 |  |  | $ | 44,194 |  |  | $ | - |  |  | $ | 223 |  |  | $ | 164,882 |
Acquisition of Mesquite (note 5(b)) |  |  | 27 |  |  |  | 43,167 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 43,194 |
Additions |  |  | 308 |  |  |  | 2,285 |  |  |  | - |  |  |  | 123,124 |  |  |  | 38 |  |  |  | 125,755 |
Impairment |  |  | - |  |  |  | (4,448 | ) |  |  | - |  |  |  | (206 | ) |  |  | (13 | ) |  |  | (4,667) |
Transfers |  |  | - |  |  |  | - |  |  |  | (44,194 | ) |  |  | 44,194 |  |  |  | - |  |  |  | - |
Disposals |  |  | - |  |  |  | (9,270 | ) |  |  | - |  |  |  | (570 | ) |  |  | (89 | ) |  |  | (9,929) |
Change in reclamation cost asset |  |  | 1,465 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1,465 |
Balance – December 31, 2018 |  | $ | 74,392 |  |  | $ | 79,607 |  |  | $ | - |  |  | $ | 166,542 |  |  | $ | 159 |  |  | $ | 320,700 |
Additions |  |  | 16,924 |  |  |  | (6,641 | ) |  |  | - |  |  |  | 78,748 |  |  |  | 942 |  |  |  | 89,973 |
Transfers |  |  | 55,318 |  |  |  | 133,694 |  |  |  | - |  |  |  | (200,038 | ) |  |  | 1,089 |  |  |  | (9,937) |
Transfer from exploration and evaluation assets (note 9) |  |  | 133,060 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 133,060 |
Disposals |  |  | - |  |  |  | (1,758 | ) |  |  | - |  |  |  | - |  |  |  | (74 | ) |  |  | (1,832) |
Change in reclamation cost asset |  |  | 6,080 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 6,080 |
Balance – December 31, 2019 |  | $ | 285,774 |  |  | $ | 204,902 |  |  | $ | - |  |  | $ | 45,252 |  |  | $ | 2,116 |  |  | $ | 538,044 |
Accumulated depreciation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance – December 31, 2017 |  | $ | - |  |  | $ | 1,167 |  |  | $ | - |  |  | $ | - |  |  | $ | 43 |  |  | $ | 1,210 |
Additions |  |  | 326 |  |  |  | 4,135 |  |  |  | - |  |  |  | - |  |  |  | 87 |  |  |  | 4,548 |
Disposals |  |  | - |  |  |  | (1,939 | ) |  |  | - |  |  |  | - |  |  |  | (30 | ) |  |  | (1,969) |
Balance – December 31, 2018 |  | $ | 326 |  |  | $ | 3,363 |  |  | $ | - |  |  | $ | - |  |  | $ | 100 |  |  | $ | 3,789 |
Additions |  |  | 12,682 |  |  |  | 24,136 |  |  |  | - |  |  |  | - |  |  |  | 294 |  |  |  | 37,112 |
Disposals |  |  | - |  |  |  | (766 | ) |  |  | - |  |  |  | - |  |  |  | (35 | ) |  |  | (801) |
Balance – December 31, 2019 |  | $ | 13,008 |  |  | $ | 26,733 |  |  | $ | - |  |  | $ | - |  |  | $ | 359 |  |  | $ | 40,100 |
Net book value: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2018 |  | $ | 74,066 |  |  | $ | 76,244 |  |  | $ | - |  |  | $ | 166,542 |  |  | $ | 59 |  |  | $ | 316,911 |
At December 31, 2019 |  | $ | 272,766 |  |  | $ | 178,169 |  |  | $ | - |  |  | $ | 45,252 |  |  | $ | 1,757 |  |  | $ | 497,944 |
During the year ended December 31, 2019, the Company capitalized $41.7 million (2018 – $121.7 million) of construction costs at Aurizona, which includes interest and accretion on the Aurizona project debt totaling $5.1 million (2018 – $6.5 million). Pre-production income of $5.6 million earned during the ramp-up of Aurizona was deducted from construction-in-progress. On commencement of commercial production at Aurizona on July 1, 2019, the Company transferred $195.3 million from construction-in-progress to mineral properties ($53.5 million) and plant and equipment ($131.9 million). In addition, $9.9 million was transferred from construction-in-progress to inventory. In September 2019, the Company recognized $11.3 million as a reduction to mineral properties, plant and equipment related to a recoverable credit for value-added taxes paid that was made available during Aurizona construction. During the year ended December 31, 2019, the Company capitalized to construction-in-progress $21.0 million of costs at Castle Mountain. Certain of the Company’s mining properties are subject to royalty arrangements based on their net smelter returns (“NSR”s) or gross revenues. At December 31, 2019, the Company’s significant royalty arrangements were as follows:
Mineral property |  | Royalty arrangements
Mesquite |  | 0.5%-7% NSR
Aurizona |  | 1.5% of gross sales; 3%-5% sliding scale NSR based on gold price
Castle Mountain |  | 2.65% NSR

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- Definition The entire disclosure for property, plant and equipment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2019-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2019-en-r&doctype=Standard&dita_xref=IAS16_g73-79_TI -URIDate 2019-03-27 + Details
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