Commitments and Contingencies - Additional Information (Details)	6 Months Ended
	Dec. 31, 2025 USD ($) a MiningClaim	Dec. 31, 2025 CAD ($) MiningClaim
Seabridge Gold Inc.
Commitments And Contingencies [Line Items]
Percentage of outstanding common stock	4.67%
Option Agreement | Nevada
Commitments And Contingencies [Line Items]
Total consideration payable	$ 300,000
Total consideration paid	$ 20,000
Grassy Mountain Project
Commitments And Contingencies [Line Items]
Number of mining fields | MiningClaim	44	44
Area covered by mining claims | a	589
Annual lease payment, year one	$ 60,000
Option to purchase mining claims, price	$ 560,000
Term of the agreement	25 years
Operating lease, payments	$ 0
Grassy Mountain Project | Option Agreement | Seabridge Gold Inc.
Commitments And Contingencies [Line Items]
Payment to purchase net profit interest		$ 10,000,000
Grassy Mountain Project | Minimum
Commitments And Contingencies [Line Items]
Royalty rate	2.00%
Grassy Mountain Project | Maximum
Commitments And Contingencies [Line Items]
Royalty rate	4.00%