Commitments and Contingencies (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Loss Contingencies [Line Items]
Surety Bonds Outstanding	$ 553,000
Cash collateral for surety bond	5,600
Contribution to fund asset retirement obligations	2,664	$ 80,000
Long-term asset retirement obligation	138,657		$ 135,993
Securitization and Inventory Facilities
Loss Contingencies [Line Items]
Letters of credit outstanding	74,400
Asset retirement obligations
Loss Contingencies [Line Items]
Surety Bonds Outstanding	456,100
Cash collateral for surety bond	600
Reclamation-related obligations	243,200
Contribution to fund asset retirement obligations	1,600
Long-term asset retirement obligation	$ 138,700