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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

COMMITMENTS AND CONTINGENCIES - Flow-through eligible expenses (Details) - USD ($) $ in Millions	Jun. 14, 2024	Dec. 14, 2023	Sep. 30, 2024
Flow through Eligible Expenses \| Timmins
Other Commitments
Gross proceeds	$ 21.9	$ 16.1
Flow Through CEE
Other Commitments
Renounced commitment			$ 13.7