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Contract Assets and Liabilities - Summary of Contract Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Contractors [Line Items] |  |  |
Unbilled revenue, net | $ 134,187 | $ 97,543 |
Contract retainages, net | 90,888 | 88,260 |
Contract assets, net | 225,075 | 185,803 |
Changes in contract assets, net | 39,266 | $ (31,360) | $ 16,443
Net Period Change |  |  |
Contractors [Line Items] |  |  |
Changes in unbilled revenue, net | 36,644 |  |
Changes in contract retainages, net | 2,628 |  |
Changes in contract assets, net | $ 39,272 |  |

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