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Mineral Rights and Properties - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Dec. 05, 2023	Dec. 31, 2022
Mineral Properties [Line Items]
Payments required to maintain mineral rights	$ 516
Depletion	2,568
Mineral rights and properties, net	271,922	$ 273,961	$ 274,490	$ 274,490	$ 274,490		$ 154,765
Cost of sales
Mineral Properties [Line Items]
Depletion	1,334
Depreciation, amortization and accretion, net
Mineral Properties [Line Items]
Depletion	$ 1,234
McKinley
Mineral Properties [Line Items]
Ownership interest in subsidiary as a result of transaction (as a percent)	100.00%
Crownpoint
Mineral Properties [Line Items]
Ownership interest in subsidiary as a result of transaction (as a percent)	60.00%
Hotsa Butte
Mineral Properties [Line Items]
Ownership interest in subsidiary as a result of transaction (as a percent)	100.00%
Crownpoint and Hosta Butte
Mineral Properties [Line Items]
Ownership interest in remaining project area (as a percent)	100.00%
Alta Mesa
Mineral Properties [Line Items]
Ownership interest in subsidiary as a result of transaction (as a percent)						70.00%
Noncontrolling ownership percentage						30.00%
Crownpoint and Hosta Butte
Mineral Properties [Line Items]
Gross profit royalty on uranium produced (as a percent)	3.00%
Alta Mesa
Mineral Properties [Line Items]
Mineral rights and properties, net	$ 118,438

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
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-SubTopic 10
-Topic 230
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Mineral properties, net of adjustments.

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-SubTopic 10
-Topic 360
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