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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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TRANSACTION - Narrative (Details)			1 Months Ended
TRANSACTION - Narrative (Details)	Aug. 28, 2026 USD ($) $ / shares	Aug. 28, 2026 USD ($) shares	Sep. 30, 2026 USD ($)
Business Combination [Line Items]
ASM contributed revenues since acquisition date			$ 440,000
ASM contributed net loss since acquisition date			$ 3,890,000
Australian Strategic Materials Limited
Business Combination [Line Items]
Voting interest acquired	100.00%	100.00%
Fair value of consideration transferred		$ 248,493,000
Common Shares exchanged for ASM ownership interest		217,242,000
Goodwill recognized, expected to be deductible for income tax purposes	$ 0	$ 0
Australian Strategic Materials Limited \| CHESS Depositary Interests
Business Combination [Line Items]
Common stock, number of Energy Fuels stock for each share of ASM common stock converted (in shares) \| shares		0.053
Australian Strategic Materials Limited \| Unrestricted Common Shares
Business Combination [Line Items]
Common stock, number of Energy Fuels stock for each share of ASM common stock converted (in shares) \| shares		0.053
Australian Strategic Materials Limited \| ASM Shareholders
Business Combination [Line Items]
Cash consideration, cash per share for ASM common stock converted (in dollars per share) \| $ / shares	$ 0.13
Cash consideration paid		$ 26,100,000
Australian Strategic Materials Limited \| ASM Option Holders
Business Combination [Line Items]
Cash consideration, cash per share for ASM common stock converted (in dollars per share) \| $ / shares	$ 0.50
Cash consideration paid		$ 5,151,000