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OPERATING SEGMENT REPORTING (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Inventory | $ 38,376 |  |  |  | $ 22,039 |  |  |  | $ 38,376 | $ 22,039 |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 117,019 | 128,175 | $ 67,465
Depreciation and depletion |  |  |  |  |  |  |  |  | (24,753) | (15,079) | (4,036)
Gross profit | 1,261 | $ 1,619 | $ 4,677 | $ 1,429 | 2,749 | $ 6,013 | $ 9,092 | $ 14,228 | 8,986 | 32,082 | 20,080
Advanced projects |  |  |  |  |  |  |  |  | (9,520) | (15,063) | (11,129)
Loss from investment in Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  | (8,754) | (11,865) | (44)
Impairment of mineral property interests and property and equipment |  |  |  |  |  |  |  |  |  |  | (711)
Loss before income and mining taxes |  |  |  |  |  |  |  |  | (63,591) | (47,640) | (26,003)
Capital expenditures |  |  |  |  |  |  |  |  | 30,270 | 97,468 | 11,511
El Gallo Project |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Operating expenditures |  |  |  |  |  |  |  |  | 11,600 |  |
Inventory | 3,400 |  |  |  |  |  |  |  | 3,400 |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (8,200) |  |
Sunk costs |  |  |  |  |  |  |  |  | 10,300 |  |
U.S. |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Depreciation and depletion |  |  |  |  |  |  |  |  | (10,934) |  |
Gross profit |  |  |  |  |  |  |  |  | (701) |  |
Advanced projects |  |  |  |  |  |  |  |  | (649) | (7,959) | (6,686)
Segment (loss) income |  |  |  |  |  |  |  |  | (9,904) | (13,133) | (8,818)
Capital expenditures |  |  |  |  |  |  |  |  | 18,806 | 84,713 | 6,271
Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Depreciation and depletion |  |  |  |  |  |  |  |  | (13,271) | (12,972) | (1,737)
Gross profit |  |  |  |  |  |  |  |  | 5,666 | 5,957 | 1,732
Advanced projects |  |  |  |  |  |  |  |  | (1,636) |  |
Segment (loss) income |  |  |  |  |  |  |  |  | (21,749) | (16,075) | 71
Capital expenditures |  |  |  |  |  |  |  |  | 11,464 | 12,584 | 4,301
Mexico |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Depreciation and depletion |  |  |  |  |  |  |  |  | (548) | (2,107) | (2,299)
Gross profit |  |  |  |  |  |  |  |  | 4,021 | 26,125 | 18,348
Advanced projects |  |  |  |  |  |  |  |  | (7,235) | (7,104) | (4,443)
Impairment of mineral property interests and property and equipment |  |  |  |  |  |  |  |  |  |  | (711)
Segment (loss) income |  |  |  |  |  |  |  |  | (3,214) | 16,780 | 7,584
Capital expenditures |  |  |  |  |  |  |  |  |  | 171 | 939
MSC |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Loss from investment in Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  | (8,754) | (11,865) | (44)
Segment (loss) income |  |  |  |  |  |  |  |  | (8,754) | (11,865) | (44)
Los Azules |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Segment (loss) income |  |  |  |  |  |  |  |  | (3,411) | (7,129) | (9,221)
Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Depreciation and depletion |  |  |  |  |  |  |  |  | (24,753) | (15,079) | (4,036)
Gross profit |  |  |  |  |  |  |  |  | 8,986 | 32,082 | 20,080
Advanced projects |  |  |  |  |  |  |  |  | (9,520) | (15,063) | (11,129)
Loss from investment in Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  | (8,754) | (11,865) | (44)
Impairment of mineral property interests and property and equipment |  |  |  |  |  |  |  |  |  |  | (711)
Segment (loss) income |  |  |  |  |  |  |  |  | (47,032) | (31,422) | (10,428)
General and Administrative and other |  |  |  |  |  |  |  |  | (16,559) | (16,218) | (15,575)
MSC |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 263,887 | 213,096 | 235,650
Gross profit |  |  |  |  |  |  |  |  | (33,977) | (9,117) | (31,025)
Loss before income and mining taxes |  |  |  |  |  |  |  |  | 10,277 | (9,607) | 13,300
Gold and silver sales |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales | $ 32,362 | $ 32,691 | $ 36,383 | $ 15,583 | $ 26,432 | $ 26,896 | $ 33,806 | $ 41,041 | 117,019 | 128,175 | 67,465
Gold and silver sales | U.S. |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 43,847 |  |
Gold and silver sales | Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 50,058 | 62,024 | 11,620
Gold and silver sales | Mexico |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 23,114 | 66,151 | 55,845
Gold and silver sales | Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 117,019 | 128,175 | 67,465
Production costs applicable to sales |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (83,280) | (81,014) | (43,349)
Production costs applicable to sales | U.S. |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (33,614) |  |
Production costs applicable to sales | Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (31,121) | (43,095) | (8,151)
Production costs applicable to sales | Mexico |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (18,545) | (37,919) | (35,198)
Production costs applicable to sales | Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (83,280) | (81,014) | (43,349)
Exploration | U.S. |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (8,554) | (5,174) | (2,132)
Exploration | Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (25,779) | (22,032) | (1,661)
Exploration | Mexico |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  |  | (2,241) | (5,610)
Exploration | Los Azules |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | (3,411) | (7,129) | (9,221)
Exploration | Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Cost of goods and services sold |  |  |  |  |  |  |  |  | $ (37,744) | $ (36,576) | $ (18,624)

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