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Commitments and Contingencies (Narrative) (Details) |  |  |  |  |  | 12 Months Ended
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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

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