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Revenue From Customers - Backlog By Segment (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Disaggregation of Revenue [Line Items] |  |
Backlog | $ 1,526,884 | $ 1,493,115
E-Infrastructure Solutions Backlog |  |
Disaggregation of Revenue [Line Items] |  |
Backlog | 541,150 | 432,613
Transportation Solutions Revenues |  |
Disaggregation of Revenue [Line Items] |  |
Backlog | 898,679 | 963,267
Building Solutions Backlog - Commercial |  |
Disaggregation of Revenue [Line Items] |  |
Backlog | $ 87,055 | $ 97,235

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