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SEGMENT INFORMATION - Schedule of Revenue, Operating Income, and Assets, by Reportable Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | $ 614,468 | $ 582,822 | $ 1,045,417 | $ 1,023,182 |
Cost of revenues | (471,328) | (470,079) | (807,437) | (833,535) |
Gross profit | 143,140 | 112,743 | 237,980 | 189,647 |
General and administrative expense | (33,987) | (27,856) | (68,618) | (55,154) |
Intangible asset amortization | (4,536) | (4,280) | (9,039) | (8,577) |
Other Operating Income (Expense), Net | 3,785 | (6,772) | 5,677 | (8,920) |
Operating Income | 104,564 | 72,734 | 160,640 | 114,859 |
Acquisition related costs | (2,495) | (101) | (2,674) | (137) |
Earn-out expense | 1,343 | 1,000 | 2,686 | 2,000 |
Depreciation | (13,086) | (12,645) | (25,574) | (24,606) |
Assets | 2,160,890 |  | 2,160,890 |  | $ 2,016,774
Continuing Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 2,160,890 |  | 2,160,890 |  | 2,016,774
Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  |  | 1,045,417 |  |
General and administrative expense | (22,792) | (19,752) | (44,774) | (39,135) |
Operating Income | 119,597 | 81,939 | 189,844 | 133,015 |
Operating Segments | E-Infrastructure Solutions Revenues |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 310,406 | 241,312 | 528,669 | 425,788 |
Cost of revenues | (211,181) | (176,898) | (367,702) | (321,979) |
Gross profit | 99,225 | 64,414 | 160,967 | 103,809 |
General and administrative expense | (12,491) | (9,763) | (24,624) | (19,016) |
Intangible asset amortization | (2,967) | (2,973) | (5,934) | (5,946) |
Other Operating Income (Expense), Net | 0 | 0 | 0 | 0 |
Operating Income | 83,767 | 51,677 | 130,409 | 78,846 |
Depreciation | (10,011) | (8,504) | (19,771) | (16,658) |
Assets | 1,013,882 |  | 1,013,882 |  | 958,107
Operating Segments | Transportation Solutions Revenues |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 196,797 | 232,775 | 317,458 | 381,744 |
Cost of revenues | (167,334) | (203,315) | (271,999) | (334,610) |
Gross profit | 29,463 | 29,460 | 45,459 | 47,134 |
General and administrative expense | (7,273) | (7,239) | (13,908) | (14,633) |
Intangible asset amortization | 0 | 0 | 0 | 0 |
Other Operating Income (Expense), Net | 3,785 | (6,772) | 5,677 | (8,920) |
Operating Income | 25,975 | 15,449 | 37,228 | 23,581 |
Depreciation | (2,361) | (3,669) | (4,426) | (7,041) |
Assets | 291,556 |  | 291,556 |  | 178,143
Operating Segments | Building Solutions Revenues |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 107,265 | 108,735 | 199,290 | 215,650 |
Cost of revenues | (92,813) | (89,866) | (167,736) | (176,946) |
Gross profit | 14,452 | 18,869 | 31,554 | 38,704 |
General and administrative expense | (3,028) | (2,750) | (6,242) | (5,486) |
Intangible asset amortization | (1,569) | (1,307) | (3,105) | (2,631) |
Other Operating Income (Expense), Net | 0 | 0 | 0 | 0 |
Operating Income | 9,855 | 14,813 | 22,207 | 30,588 |
Depreciation | (389) | (240) | (735) | (498) |
Assets | 263,481 |  | 263,481 |  | 238,776
Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
General and administrative expense | (11,195) | (8,104) | (23,844) | (16,019) |
Depreciation | (325) | $ (232) | (642) | $ (409) |
Assets | $ 591,971 |  | $ 591,971 |  | $ 641,748

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