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Subsequent Events - Equity Offerings (Details)				9 Months Ended
	Nov. 14, 2025 USD ($) tranche $ / shares shares	Oct. 28, 2025 USD ($) $ / shares shares	Oct. 27, 2025 USD ($) tranche $ / shares shares	Sep. 30, 2025 USD ($) $ / shares	Sep. 30, 2024 USD ($)	Dec. 31, 2024 $ / shares
Subsequent Event
Proceeds from sale of common shares | $				$ 473,761,952	$ 11,005,174
Common stock, no par value | $ / shares				$ 0		$ 0
Subsequent events | Private placement
Subsequent Event
Proceeds from sale of common shares | $	$ 24,300,000		$ 255,000,000
Issuance of an additional common shares | shares	1,000,000		10,944,205
Common stock, no par value | $ / shares	$ 0		$ 0
Price per share | $ / shares	24.25		$ 23.3
Subsequent events | Private placement | Common share purchase warrants
Subsequent Event
Aggregate issue price | $ / shares	$ 1
Number of share purchase warrants exercisable | shares	400,000		4,053,408
Number of tranches | tranche	3		3
Threshold closing price of the common shares percentage			130.00%
Subsequent events | Private placement | Warrants exercised in year one | Common share purchase warrants
Subsequent Event
Warrants premium pricing level, years			1 year
Exercise price per warrant | $ / shares			$ 31.46
Subsequent events | Private placement | Warrants exercised in year two | Common share purchase warrants
Subsequent Event
Warrants premium pricing level, years			2 years
Exercise price per warrant | $ / shares			$ 34.95
Subsequent events | Private placement | Warrants exercised in year three | Common share purchase warrants
Subsequent Event
Warrants premium pricing level, years			3 years
Exercise price per warrant | $ / shares			$ 38.45
Subsequent events | Private placement | Agnico Eagle Mines Limited
Subsequent Event
Issuance of an additional common shares | shares			7,725,321
Subsequent events | Private placement | Agnico Eagle Mines Limited | Common share purchase warrants
Subsequent Event
Number of share purchase warrants exercisable | shares			2,861,229
Subsequent events | Private placement | JP Morgan Chase
Subsequent Event
Issuance of an additional common shares | shares			3,218,884
Subsequent events | Private placement | JP Morgan Chase | Common share purchase warrants
Subsequent Event
Number of share purchase warrants exercisable | shares			1,192,179
Subsequent events | Public offering | BMO Capital Markets Corp
Subsequent Event
Proceeds from sale of common shares | $		$ 71,200,000
Issuance of an additional common shares | shares		2,938,000
Price per share | $ / shares		$ 24.25
Net proceeds from stock issuance | $		$ 67,900,000
Subsequent events | Concurrent private placement | Agnico Eagle Mines Limited
Subsequent Event
Proceeds from sale of common shares | $		$ 6,800,000
Issuance of an additional common shares | shares		280,415

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