XML 151 R39.htm IDEA: XBRL DOCUMENT
v3.22.1

Mining interests (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Disclosure of detailed information about property, plant and equipment [abstract] |
Schedule of property, plant and equipment |
Mining Properties |
| Depletable | Non- depletable | Plant & equipment | Construction in progress | Total |
(in millions of U.S. dollars) |  |  |  |  |  |
COST |  |  |  |  |  |
As at December 31, 2019 | 1,451.1 |  | 409.0 |  | 1,260.2 |  | 129.4 |  | 3,249.7 |  |
Additions | 57.7 |  | 85.7 |  | 68.3 |  | 88.2 |  | 299.9 |  |
Disposals | — |  | — |  | (9.1) |  | — |  | (9.1) |  |
Transfers | 60.6 |  | — |  | — |  | (60.6) |  | — |  |
Sale of Blackwater, net of retained mineral interest (Note 10) | — |  | (194.3) |  | (20.3) |  | — |  | (214.6) |  |
As at December 31, 2020 | 1,569.4 |  | 300.4 |  | 1,299.1 |  | 157.0 |  | 3,325.9 |  |
Additions | 113.2 |  | 110.6 |  | 36.5 |  | 59.0 |  | 319.3 |  |
Disposal of Blackwater stream (Note 10) | — |  | (150.0) |  | — |  | — |  | (150.0) |  |
Disposals | (0.3) |  | — |  | (7.6) |  | — |  | (7.9) |  |
Transfers | 63.6 |  | — |  | 34.3 |  | (97.9) |  | — |  |
As at December 31, 2021 | 1,745.9 |  | 261.0 |  | 1,362.3 |  | 118.1 |  | 3,487.3 |  |
ACCUMULATED DEPRECIATION |  |  |  |  |  |
As at December 31, 2019 | 831.4 |  | — |  | 490.3 |  | — |  | 1,321.7 |  |
Depreciation for the year | 77.7 |  | — |  | 112.0 |  | — |  | 189.7 |  |
Disposals | — |  | — |  | (7.2) |  | — |  | (7.2) |  |
Sale of Blackwater (Note 10) | — |  | — |  | (6.6) |  | — |  | (6.6) |  |
As at December 31, 2020 | 909.1 |  | — |  | 588.5 |  | — |  | 1,497.6 |  |
Depreciation for the period | 96.7 |  | — |  | 110.6 |  | — |  | 207.3 |  |
Disposals | (0.1) |  | — |  | (5.4) |  | — |  | (5.5) |  |
As at December 31, 2021 | 1,005.7 |  | — |  | 693.7 |  | — |  | 1,699.4 |  |
CARRYING AMOUNT |  |  |  |  |  |
As at December 31, 2020 | 660.3 |  | 300.4 |  | 710.6 |  | 157.0 |  | 1,828.3 |  |
As at December 31, 2021 | 740.2 |  | 261.0 |  | 668.6 |  | 118.1 |  | 1,787.9 |  |
See the table below for a reconciliation of the gain on sale of the Blackwater stream:
(in millions of U.S. dollars) |
Carrying value of assets sold |
Mineral interest | 150.0 |
Proceeds received |
Cash | 300.0 |
Transaction costs incurred | (2.7) |
Gain on sale of Blackwater stream | 147.3 |
Schedule of segmented assets and liabilities | Carrying amount by property as at December 31, 2021
| As at December 31, 2021
(in millions of U.S. dollars) | Depletable | Non- depletable | Plant & equipment | Construction in progress | Total
MINING INTEREST BY SITE |  |  |  |  |
New Afton | 396.5 |  | 224.0 |  | 154.0 |  | 44.1 |  | 818.6 |
Rainy River | 343.7 |  | 35.9 |  | 513.1 |  | 74.0 |  | 966.7 |
Other(1) | — |  | 1.1 |  | 1.5 |  | — |  | 2.6 |
Carrying amount | 740.2 |  | 261.0 |  | 668.6 |  | 118.1 |  | 1,787.9 |
1.Other includes corporate balances and exploration properties. Carrying amount by property as at December 31, 2020:
| As at December 31, 2020
(in millions of U.S. dollars) | Depletable | Non- depletable | Plant & equipment | Construction in progress | Total
MINING INTEREST BY SITE |  |  |  |  |
New Afton | 382.9 |  | 127.5 |  | 150.0 |  | 27.4 |  | 687.8 |
Rainy River | 277.4 |  | 21.8 |  | 558.4 |  | 129.6 |  | 987.2 |
Other(1) | — |  | 151.1 |  | 2.2 |  | — |  | 153.3 |
Carrying amount | 660.3 |  | 300.4 |  | 710.6 |  | 157.0 |  | 1,828.3 |
1.Other includes corporate balances, exploration properties, and the retained mineral interest in the Blackwater property.

X
- Definition The disclosure of detailed information about property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of detailed information about carrying amount of property, plant and equipment by segment wise. + References No definition available. + Details
Name: | ngd_DisclosureOfDetailedInformationAboutCarryingAmountOfPropertyPlantAndEquipmentBySegmentWiseTableTextBlock
Namespace Prefix: | ngd_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration