v3.25.4

INVESTMENTS - Investment in debt instruments & uranium (Details)	12 Months Ended
	Dec. 31, 2025 CAD ($) item lb	Dec. 31, 2025 USD ($) item lb $ / shares	Dec. 31, 2024 CAD ($) lb	Dec. 31, 2024 USD ($) lb $ / shares	Dec. 31, 2023 CAD ($) $ / shares	Dec. 31, 2025 USD ($) $ / shares	Dec. 31, 2024 USD ($) $ / shares
Disclosure of financial assets [line items]
Physical uranium hold \| lb	1,700,000	1,700,000	2,200,000	2,200,000
Physical Uranium Holdings Cost	$ 62,487,000		$ 80,729,000			$ 50,539,000	$ 65,289,000
Physical Uranium Holdings Cost Per Price		$ 29.73		$ 29.67
Physical uranium holdings market value	$ 190,276,000	$ 138,615,000	$ 231,088,000	$ 160,600,000
Physical uranium holdings market value per pound						$ 81.55	$ 73
Number of uranium sales made during the period \| item	4	4
Physical uranium sold \| lb	500,000	500,000
Physical uranium holdings average value per pound						$ 78.63
Proceeds on disposal of investment - uranium (note 6)	$ 54,251,000	$ 39,314,000
Physical uranium commitment to sales \| lb	550,000	550,000
Convertible Debentures
Disclosure of financial assets [line items]
Purchase of investment-convertible debenture \| $					$ 15,000,000
Investments, coupon rate					9.00%
Investments, interest payment period					5 years
Investments, convertible to common shares, conversion price per share					$ 0.56
Investments, interest payable in common shares, percent					33.33%
Number of trading days considered for calculating volume weighted average share price					20 days

Conversion price per share of investments convertible to common shares.

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- Definition

Percentage of coupon rate on investments.

+ References

No definition available.

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- Definition

Percentage of interest payable in Common shares of investments.

+ References

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- Definition

Period of payment of interest on investments.

+ References

No definition available.

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- Definition

Number of trading days considered for calculating volume weighted average share price.

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- Definition

Number of Uranium sales made during the period.

+ References

No definition available.

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- Definition

Physical uranium hold.

+ References

No definition available.

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- Definition

Physical uranium holdings average value per pound.

+ References

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- Definition

Market value of physical uranium holdings.

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No definition available.

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- Definition

Physical uranium holdings market value per pound.

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No definition available.

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- Definition

Number of uranium sales commitment for next twelve months.

+ References

No definition available.

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- Definition

Physical uranium sold.

+ References

No definition available.

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- Definition

Amount of pound pf physical uranium holdings cost.

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- Definition

Pound of physical uranium holdings cost per price.

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- Definition

The cash inflow from the disposal of uranium investment.

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No definition available.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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- Definition

The cash outflow to acquire equity or debt instruments of other entities (other than payments for those instruments considered to be cash equivalents or those held for dealing or trading purposes), classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 16
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DENISON MINES CORP. 6-K