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REVENUE FROM CUSTOMERS - Schedule of Backlog by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Total RPOs	$ 2,008,695	$ 1,693,223
E-Infrastructure Solutions RPOs | Continuing Operations
Disaggregation of Revenue [Line Items]
Total RPOs	1,249,711	1,032,109
Transportation Solutions RPOs | Continuing Operations
Disaggregation of Revenue [Line Items]
Total RPOs	714,983	622,085
Building Solutions RPOs - Commercial | Continuing Operations
Disaggregation of Revenue [Line Items]
Total RPOs	$ 44,001	$ 39,029

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