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Revenue Recognition and Related Balance Sheet Accounts - Additional Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 USD ($) project Customer | Jun. 30, 2021 USD ($) Customer | Mar. 31, 2021 USD ($) | Jun. 30, 2022 USD ($) project Customer | Jun. 30, 2021 USD ($) Customer | Dec. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Percent of total revenues recognized associated with revenue recognition method | 51.70% | 43.90% |  | 51.50% | 43.90% |
Remaining performance obligation | $ 6,920,000 |  |  | $ 6,920,000 |  | $ 5,900,000
Revenues recognized related to change orders and claims | $ 497,100 |  |  | $ 497,100 |  | 367,800
Number of transmission projects due to changes orders and claims | project | 2 |  |  | 2 |  |
Change in contract estimates, favorable (unfavorable) impact on revenues | $ 62,100 | $ 63,500 |  | $ 80,800 | $ 105,000 |
Change in contract estimates, (favorable) unfavorable impact on operating results, amount | $ (62,300) | $ (57,500) |  | $ (72,700) | $ (88,500) |
Change in contract estimates, (favorable) unfavorable impact on operating results, percent | (10.00%) | (12.80%) |  | (6.20%) | (10.80%) |
Revenue recognized related to amounts in contract liabilities outstanding at the beginning of period |  |  |  | $ 629,600 |  |
Increase (decrease) in provision for credit losses | $ (428) | $ 23,877 |  | $ (295) | $ 23,920 |
Ownership percentage of customer in joint venture | 50.00% |  |  | 50.00% |  |
Current retainage balances | $ 342,100 |  |  | $ 342,100 |  | 406,700
Non-current retainage balances | 128,400 |  |  | 128,400 |  | 93,900
Unbilled receivables | 897,500 |  |  | 897,500 |  | $ 679,000
Limetree Bay Refining, LLC |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Accounts receivable, before allowance for credit loss | 31,300 |  |  | 31,300 |  |
Limetree Bay Terminals, LLC |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Accounts receivable, before allowance for credit loss | $ 400 |  |  | $ 400 |  |
Limetree Bay Refining, LLC And Limetree Terminal, LLC |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Increase (decrease) in provision for credit losses |  | $ 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 |  |  |  | 12.00% |  | 11.00%
Customer Concentration Risk | Customer With Joint Venture Interest | Accounts Receivable |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Concentration risk percentage |  |  |  |  |  | 11.00%
Accounts payable and accrued expenses |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Unearned revenues, current portion | $ 48,200 |  |  | $ 48,200 |  | $ 51,800
Domestic Communications Project |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Change in contract estimates, (favorable) unfavorable impact on operating results, amount |  |  | $ 14,800 |  |  |
Aggregate consideration for projects | $ 77,200 |  |  | $ 77,200 |  |
Percentage of project completion | 100.00% |  |  | 100.00% |  |
Large Renewable Energy Transmission Project |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Change in contract estimates, (favorable) unfavorable impact on operating results, amount | $ 13,000 |  |  | $ 23,700 |  |
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%
Recognition period for remaining performance obligation |  |  |  |  |  | 12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Percent of remaining performance obligation expected to be recognized | 79.10% |  |  | 79.10% |  |
Recognition period for remaining performance obligation | 12 months |  |  | 12 months |  |

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