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Segmented Information - Disclosure Of Operating Segments Explanatory (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of operating segments [line items] |  |
Revenue | $ 281,697 | $ 30,159
Operating expenses | (159,198) | (19,028)
Depreciation and depletion | (38,645) | (4,201)
Earnings from Mine Operations | 83,854 | 6,930
Impairment |  | (13,283)
Exploration | (8,754) | (12,232)
General and administration | (19,976) | (16,461)
Earnings (loss) from operations | 55,124 | (35,046)
Finance expense | (17,537) | (6,698)
Finance income | 1,950 | 4,436
Other income (expense) | (52,723) | 238
Income (loss) before taxes | (13,186) | (37,070)
Tax recovery (expense) | (7,138) | (2,335)
Net income (loss) from continuing operations | (20,324) | (39,405)
Mesquite [Member] |  |
Disclosure of operating segments [line items] |  |
Revenue | 178,175 | 30,159
Operating expenses | (108,573) | (19,028)
Depreciation and depletion | (16,764) | (4,201)
Earnings from Mine Operations | 52,838 | 6,930
Exploration |  | (2)
Earnings (loss) from operations | 52,838 | 6,928
Finance expense | (385) | (1,911)
Finance income | 17 |
Other income (expense) | (1,756) | 102
Income (loss) before taxes | 50,714 | 5,119
Tax recovery (expense) | (6,713) | (448)
Net income (loss) from continuing operations | 44,001 | 4,671
Aurizona [Member] |  |
Disclosure of operating segments [line items] |  |
Revenue | 103,522 |
Operating expenses | (50,625) |
Depreciation and depletion | (21,881) |
Earnings from Mine Operations | 31,016 |
Impairment |  | (3,360)
Exploration | (2,028) | (1,531)
Earnings (loss) from operations | 28,988 | (4,891)
Finance expense | (552) | (300)
Finance income | 184 | 2,525
Other income (expense) | (4,179) | (13,974)
Income (loss) before taxes | 24,441 | (16,640)
Tax recovery (expense) | (2,970) | (1,588)
Net income (loss) from continuing operations | 21,471 | (18,228)
Castle Mountain [Member] |  |
Disclosure of operating segments [line items] |  |
Impairment |  | 0
Exploration | (4,723) | (8,176)
General and administration | 0 |
Earnings (loss) from operations | (4,723) | (8,176)
Finance expense | (49) | (120)
Finance income | 4 |
Other income (expense) |  | 4
Income (loss) before taxes | (4,768) | (8,292)
Net income (loss) from continuing operations | (4,768) | (8,292)
Other [Member] |  |
Disclosure of operating segments [line items] |  |
Impairment |  | (9,923)
Exploration | (2,003) | (2,523)
General and administration | (1,115) | (313)
Earnings (loss) from operations | (3,118) | (12,759)
Finance income | 28 | 6
Other income (expense) |  | 75
Income (loss) before taxes | (3,090) | (12,678)
Tax recovery (expense) | 135 | (299)
Net income (loss) from continuing operations | (2,955) | (12,977)
Corporate [Member] |  |
Disclosure of operating segments [line items] |  |
General and administration | (18,861) | (16,148)
Earnings (loss) from operations | (18,861) | (16,148)
Finance expense | (16,551) | (4,367)
Finance income | 1,717 | 1,905
Other income (expense) | (46,788) | 14,031
Income (loss) before taxes | (80,483) | (4,579)
Tax recovery (expense) | 2,410 |
Net income (loss) from continuing operations | $ (78,073) | $ (4,579)

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- Definition The amount of depreciation expense. Depreciation is the systematic allocation of depreciable amounts of tangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2019-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2019-en-r&anchor=para_24_b&doctype=Standard -URIDate 2019-03-27 + Details
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