XML 70 R42.htm IDEA: XBRL DOCUMENT
v3.21.1

INCOME TAX (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Income Tax [Abstract] |
Disclosure of income tax expense (recovery) [Table Text Block] |
|  | Years ended December 31, |
|  | 2020 |  |  | 2019 |
Current income tax: |  |  |  |  |  |
Current period expense |  | 1,769 |  |  | 817 |
Deferred income tax: |  |  |  |  |  |
Origination and reversal of temporary differences |  | (10,648 | ) |  | (33,145 | )
Deferred tax adjustments related to prior periods |  | (217 | ) |  | (9 | )
Deferred income tax recovery |  | (10,865 | ) |  | (33,154 | )
Income tax recovery |  | (9,096 | ) |  | (32,337 | )
Disclosure of effective tax rate reconciliation [Table Text Block] |
|  | Years ended December 31, |
|  | 2020 |  |  | 2019 |
Income tax at Canadian statutory rate of 36.5% (2019: 36.5%) |  | (11,922 | ) |  | (31,279 | )
Permanent differences |  | 4,189 |  |  | 885 |
Foreign tax rate differential |  | (3 | ) |  | (191 | )
Unrecognized tax benefits |  | (1,143 | ) |  | (1,793 | )
Deferred tax adjustments related to prior periods |  | (217 | ) |  | 41 |
Income tax recovery |  | (9,096 | ) |  | (32,337 | )
Disclosure of deferred tax assets and liabilities [Table Text Block] | (c) Deferred tax assets and liabilities Deferred tax assets and liabilities are attributable to the following:
|  | As at December 31, |
|  | 2020 |  |  | 2019 |
Property, plant and equipment |  | (154,587 | ) |  | (156,669 | )
Other financial assets |  | 5,714 |  |  | 2,951 |
Provisions |  | 20,422 |  |  | 17,009 |
Tax loss carry forwards |  | 89,391 |  |  | 86,006 |
Deferred tax liability |  | (39,060 | ) |  | (50,703 | )
Disclosure of unrecognized deferred tax assets and liabilities [Table Text Block] |
|  | As at December 31, |
|  | 2020 |  |  | 2019 |
Deductible temporary differences: |  |  |  |  |  |
Debt |  | 58,643 |  |  | 65,024 |
Other investments |  | 30,523 |  |  | 33,344 |
Losses and tax pools |  | 33,344 |  |  | 31,823 |
Other financial assets |  | 12,304 |  |  | 17,713 |
Deferred tax asset: |  |  |  |  |  |
Debt |  | 7,873 |  |  | 8,778 |
Other investments |  | 8,241 |  |  | 4,501 |
Losses and tax pools |  | 4,501 |  |  | 8,592 |
Other financial assets |  | 1,672 |  |  | 2,398 |

X
- Definition The disclosure of deferred taxes. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_10_e&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DisclosureOfDeferredTaxesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of types of temporary differences, unused tax losses and unused tax credits. [Refer: Unused tax credits [member]; Unused tax losses [member]; Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_g&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of components of income tax. + References No definition available. + Details
Name: | tgb_DisclosureOfDetailedInformationAboutComponentsOfIncomeTaxExplanatory
Namespace Prefix: | tgb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of effective income tax rate reconciliation. + References No definition available. + Details
Name: | tgb_DisclosureOfDetailedInformationAboutEffectiveIncomeTaxRateReconciliationExplanatory
Namespace Prefix: | tgb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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