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Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Asset retirement obligation $ 9,809    
MLMC      
Segment Reporting Information [Line Items]      
Asset retirement obligation 9,800    
Asset capitalized as a component of property, plant and equipment, net 9,800    
Bellaire      
Segment Reporting Information [Line Items]      
Initial investment amount     $ 5,000
Fair value of trust assets 11,100 $ 12,300  
Centennial      
Segment Reporting Information [Line Items]      
Increase (decrease) in asset retirement obligation 4,800    
Escrow account 3,800    
Settlement receivable from third parties 1,400    
Other long-term liabilities, contingent and noncontingent guarantee liabilities $ 2,400