Commitments and Contingencies (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Loss Contingencies [Line Items]
Surety Bonds Outstanding	$ 488,500
Cash collateral for surety bond	5,600
Contribution to fund asset retirement obligations	5,667	$ 4,421
Fund for asset retirement obligations	147,932		$ 142,266
Securitization and Inventory Facilities
Loss Contingencies [Line Items]
Letters of credit outstanding	76,700
Asset retirement obligations
Loss Contingencies [Line Items]
Surety Bonds Outstanding	402,200
Cash collateral for surety bond	600
Reclamation-related obligations	273,400
Contribution to fund asset retirement obligations	5,600
Fund for asset retirement obligations	$ 147,900