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Acquisition of additional interest in Cigar Lake Joint Venture (CLJV) (Disclosure Of Detailed Information About Business Combinations) (Details) |  | 12 Months Ended
--- | --- | ---
May 19, 2022 CAD ($) | Dec. 31, 2022 CAD ($) lb | Dec. 31, 2021 CAD ($)
Disclosure Of Business Combinations [Line Items] |  |  |
Reclamation provision |  | $ (2,528,000) |
Sales contracts |  | (9,000,000) | $ 0
Bargain purchase gain |  | 22,802,000 | $ 0
Cigar Lake Joint Venture [Member] |  |  |
Disclosure Of Business Combinations [Line Items] |  |  |
Property, plant and equipment | $ 97,930,000 |  |
Deferred tax asset | 28,196,000 |  |
Inventory | 9,909,000 |  |
Working capital | (24,000) |  |
Reclamation provision | (2,528,000) |  |
Sales contracts | (9,000,000) |  |
Net assts acquired | 124,483,000 |  |
Cash paid | 101,681,000 |  |
Bargain purchase gain | $ 22,802,000 |  |
Consideration held in escrow |  | $ 3,000,000 |
Additional interest | 4.522% |  |
Uranium production | lb |  | 296,000 |
Acquisition costs |  | $ 1,495,000 |
Cigar Lake Joint Venture [Member] | Before acquiring additional interest in Joint Venture [Member] |  |  |
Disclosure Of Business Combinations [Line Items] |  |  |
Ownership stake | 50.025% |  |
Cigar Lake Joint Venture [Member] | After acquiring additional interest in Joint Venture [Member] |  |  |
Disclosure Of Business Combinations [Line Items] |  |  |
Ownership stake | 54.547% |  |
Cigar Lake Joint Venture [Member] | Idemitsu [Member] |  |  |
Disclosure Of Business Combinations [Line Items] |  |  |
Ownership stake | 7.875% |  |

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- Definition The amount of acquisition-related costs recognised as an expense for transactions that are recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph m -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_m&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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