Income and Mining Taxes - Summary of Tax Credit Carryforwards (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Tax Credit Carryforward [Line Items]
Regular net operating losses	$ 1,151,535
Capital losses	79,846
Foreign tax credits	10,864
United States
Tax Credit Carryforward [Line Items]
Regular net operating losses	614,873
Capital losses	53,483
Foreign tax credits	10,864
Canada
Tax Credit Carryforward [Line Items]
Regular net operating losses	457,894
Mexico
Tax Credit Carryforward [Line Items]
Regular net operating losses	1,913
New Zealand
Tax Credit Carryforward [Line Items]
Regular net operating losses	76,041
Other jurisdictions
Tax Credit Carryforward [Line Items]
Regular net operating losses	$ 814