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Revenue from Contracts with Customers - Revisions in Contract Estimates (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 USD ($) project | Mar. 31, 2021 USD ($) project
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |
Gross profit write-up | $ 533 | $ 743
Number of Projects | project | 2 | 2
Gross profit write ups | $ (604) | $ (768)
Number of Projects | project | 2 | 2
Total gross profit write-downs, net | $ (71) | $ (25)
GCR |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |
Gross profit write-up | $ 533 | $ 743
Number of Projects | project | 2 | 2
Gross profit write ups | $ (604) | $ (768)
Number of Projects | project | 2 | 2
ODR |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |
Gross profit write-up | $ 0 | $ 0
Number of Projects | project | 0 | 0
Gross profit write ups | $ 0 | $ 0
Number of Projects | project | 0 | 0

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