Investments in Equity and Marketable Securities - Schedule of Equity Investments (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Equity Securities, FV-NI [Roll Forward]
Balance, beginning of period	$ 43,591	$ 24,883	$ 24,883
Divestment of publicly traded companies	(5,885)		(11,151)
Fair value loss on marketable securities (unrealized)	(10,048)	(9,876)	(5,681)
Foreign exchange gain (loss) translation	(140)		1,144
Balance, end of period	70,117		43,591
Noncurrent marketable securities	0		0
Current marketable securities	70,117	$ 14,817	43,591
Verdera Energy Corp
Equity Securities, FV-NI [Roll Forward]
Investment obtained as part of sale of mineral property	36,530		0
Non-Verdera
Equity Securities, FV-NI [Roll Forward]
Investment obtained as part of sale of mineral property	$ 6,069		$ 34,396