Income and Mining Taxes - Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Examination [Line Items]
United States, Income (loss) before tax	$ 403,735	$ 50,194	$ (107,021)
Foreign, Income (loss) before tax	(278,803)	(76,156)	(38,565)
Income (loss) before income and mining taxes	682,538	126,350	(68,456)
Tax (expense) benefit	$ 96,666	$ 67,450	$ 35,156