XML 108 R82.htm IDEA: XBRL DOCUMENT
v3.20.4

SHARE CAPITAL (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Share Capital Abstract |  |
Beginning balance, shares | 597,192,153 | 589,175,086
Share issue proceeds, shares | 81,179,280 | 6,934,500
Share option exercises, shares | 251,500 | 663,150
Share unit exercises-fair value adjustment, shares | 358,949 | 433,333
Share cancellations, shares | 0 | (46,178)
Acquisition-Murphy Lake additional interest (note 10), shares | 0 | 32,262
Ending balance, shares | 678,981,882 | 597,192,153
Beginning balance | $ 1,335,467 | $ 1,331,214
Share issue proceeds | 33,933 | 4,715
Share issue costs | (3,108) | (423)
Share option exercises | 148 | 405
Share unit exercises-fair value adjustment | 242 | 299
Share option exercises-fair value adjustment | 50 | 140
Flow-through share premium liability | (22) | (902)
Acquisition-Murphy Lake additional interest (note 10) | 0 | 19
Ending balance | $ 1,366,710 | $ 1,335,467

X
- References No definition available. + Details
Name: | DNN_FlowthroughSharePremium
Namespace Prefix: | DNN_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_IncreaseDecreaseInNumberOfOrdinarySharesIssuedForAcquisition
Namespace Prefix: | DNN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_IncreaseDecreaseInNumberOfOrdinarySharesIssuedForShareCancellations
Namespace Prefix: | DNN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_IncreaseDecreaseInNumberOfOrdinarySharesIssuedForShareOptionExercises
Namespace Prefix: | DNN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_IncreaseDecreaseInNumberOfOrdinarySharesIssuedForShareUnitExercises
Namespace Prefix: | DNN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_NonCashFairValueAdjustmentFromIssuingSharesForShareOptionsExercised
Namespace Prefix: | DNN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_NonCashFairValueAdjustmentsFromIssuingSharesForShareUnitsExercised
Namespace Prefix: | DNN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | DNN_ProceedsFromIssuingSharesForShareOptionsExercised
Namespace Prefix: | DNN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- References No definition available. + Details
Name: | DNN_SharesIssuedForAcquisition
Namespace Prefix: | DNN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) in the number of ordinary shares issued. [Refer: Ordinary shares [member]] + 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
Name: | ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal value of capital issued. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_e&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_IssuedCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_NumberOfSharesOutstanding
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow from the issuing of ordinary shares. [Refer: Ordinary shares [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2019-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_17&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ProceedsFromIssueOfOrdinaryShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of cost related to the issuance of shares. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_106_d&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ShareIssueRelatedCost
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration