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Commitments and Contingencies (Narrative) (Details)
 12 Months Ended
Jun. 14, 2022
USD ($)
Jun. 15, 2021
USD ($)
Apr. 22, 2021
USD ($)
bbl
Jan. 14, 2015
USD ($)
Apr. 23, 2014
USD ($)
Dec. 31, 2022
USD ($)
Commitments And Contingencies [Line Items]            
Outstanding performance bonds           $ 730,276,000
Revenue value remaining from outstanding performance bonds           308,515,000
Proceeds from Legal Settlements       $ 5,309,000    
Fine for violation $ 1,000,000 $ 1,000,000        
Potential liability for criminal matters     $ 2,000,000      
Crude Oil [Member]            
Commitments And Contingencies [Line Items]            
Quantity of oil spill | bbl     160      
Indemnification Commitment [Member]            
Commitments And Contingencies [Line Items]            
Aggregate demolition surety performance bond         $ 21,934,000  
Minimum [Member]            
Commitments And Contingencies [Line Items]            
Bids bond range           $ 1,000,000
Warranty periods           1 year
Maximum [Member]            
Commitments And Contingencies [Line Items]            
Bids bond range           $ 10,000,000
Warranty periods           3 years