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Revenue Recognition and Related Balance Sheet Accounts - Additional Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 USD ($) Customer | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) Customer | Jun. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) Customer | Sep. 30, 2021 USD ($) Customer | Dec. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Percent of total revenues recognized associated with revenue recognition method | 52.40% |  | 42.50% |  | 51.50% | 43.40% |
Remaining performance obligation | $ 6,830,000 | $ 5,900,000 |  |  | $ 6,830,000 |  | $ 5,900,000
Revenues recognized related to change orders and claims | 524,100 | 367,800 |  |  | 524,100 |  | 367,800
Change in contract estimates, favorable (unfavorable) impact on revenues | 76,200 |  | $ 53,200 |  | 119,700 | $ 151,700 |
Change in contract estimates, (favorable) unfavorable impact on operating results, amount | $ 70,600 |  | $ 41,900 |  | $ 108,100 | $ 127,400 |
Change in contract estimates, (favorable) unfavorable impact on operating results, percent | 10.20% |  | 7.80% |  | 5.80% | 9.40% |
Revenue recognized related to amounts in contract liabilities outstanding at the beginning of period |  |  |  |  | $ 667,200 |  |
Write-offs charged against the allowance net of recoveries of amounts previously written off | $ (33,030) |  | $ (253) |  | (32,777) | $ (1,006) |
Increase (decrease) in provision for credit losses | $ 2,343 |  | $ 249 |  | $ 2,048 | $ 24,169 |
Ownership percentage of customer in joint venture | 50.00% |  |  |  | 50.00% |  |
Current retainage balances | $ 339,900 | 406,700 |  |  | $ 339,900 |  | 406,700
Non-current retainage balances | 134,100 | 93,900 |  |  | 134,100 |  | 93,900
Unbilled receivables | 977,200 | 679,000 |  |  | 977,200 |  | 679,000
Unearned revenues, current portion | 57,400 | 51,800 |  |  | $ 57,400 |  | $ 51,800
Limetree Bay Refining, LLC |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Write-offs charged against the allowance net of recoveries of amounts previously written off | $ (31,700) |  |  |  |  |  |
Increase (decrease) in provision for credit losses |  | $ 8,100 |  | $ 23,600 |  |  |
Customer Concentration Risk |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Number of customers representing ten percent or more of net receivable position | Customer | 0 |  | 0 |  | 0 | 0 |
Customer Concentration Risk | One Customer | Accounts Receivable |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Concentration risk percentage |  |  |  |  | 11.00% |  | 11.00%
Customer Concentration Risk | Customer With Joint Venture Interest | Accounts Receivable |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Concentration risk percentage |  |  |  |  |  |  | 11.00%
Large Renewable Energy Transmission Project |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Change in contract estimates, (favorable) unfavorable impact on operating results, amount |  |  |  |  | $ 21,800 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Percent of remaining performance obligation expected to be recognized |  | 81.80% |  |  |  |  | 81.80%
Recognition period for remaining performance obligation |  | 12 months |  |  |  |  | 12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01 |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |
Percent of remaining performance obligation expected to be recognized | 79.20% |  |  |  | 79.20% |  |
Recognition period for remaining performance obligation | 12 months |  |  |  | 12 months |  |

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