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BUSINESS SEGMENT INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 500,873 | $ 335,149 | $ 1,237,261 | $ 933,265
(Gain) loss on derivatives | 3,701 | (3,047) | (267) | (3,308)
Interest expense, net of interest income | 13,167 | 7,564 | 32,776 | 18,168
Depreciation and amortization of intangible assets | 22,989 | 16,613 | 61,271 | 46,053
Income (loss) before taxes, excluding unallocated corporate activity | 33,736 | 31,168 | 77,527 | 76,614
North America Regions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 291,611 | 157,700 | 638,027 | 450,013
U.S. Federal |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 89,113 | 87,341 | 236,740 | 226,916
Europe |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 52,613 | 40,500 | 169,794 | 103,121
Alternative Fuels |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 43,537 | 27,319 | 122,248 | 85,974
All Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 23,999 | 22,289 | 70,452 | 67,241
Operating Segments | North America Regions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 291,611 | 157,700 | 638,027 | 450,013
(Gain) loss on derivatives | 1,592 | (1,764) | (1,045) | (2,145)
Interest expense, net of interest income | 3,577 | 1,758 | 7,788 | 5,240
Depreciation and amortization of intangible assets | 9,552 | 7,437 | 26,422 | 21,002
Income (loss) before taxes, excluding unallocated corporate activity | 22,662 | 15,712 | 37,098 | 34,981
Operating Segments | U.S. Federal |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 89,113 | 87,341 | 236,740 | 226,916
(Gain) loss on derivatives | 1,342 | (791) | 316 | (787)
Interest expense, net of interest income | 2,017 | 278 | 4,208 | 864
Depreciation and amortization of intangible assets | 4,751 | 1,229 | 9,626 | 3,689
Income (loss) before taxes, excluding unallocated corporate activity | 9,543 | 12,129 | 26,284 | 26,228
Operating Segments | Europe |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 52,613 | 40,500 | 169,794 | 103,121
(Gain) loss on derivatives | 0 | 0 | 0 | 0
Interest expense, net of interest income | 1,371 | 764 | 3,147 | 1,515
Depreciation and amortization of intangible assets | 503 | 645 | 1,513 | 1,430
Income (loss) before taxes, excluding unallocated corporate activity | (3,285) | 1,049 | (2,044) | 2,252
Operating Segments | Alternative Fuels |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 43,537 | 27,319 | 122,248 | 85,974
(Gain) loss on derivatives | 767 | (492) | 462 | (376)
Interest expense, net of interest income | 6,203 | 4,764 | 17,634 | 10,551
Depreciation and amortization of intangible assets | 7,494 | 6,669 | 21,709 | 18,741
Income (loss) before taxes, excluding unallocated corporate activity | 2,236 | 820 | 8,258 | 7,446
Operating Segments | All Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 23,999 | 22,289 | 70,452 | 67,241
(Gain) loss on derivatives | 0 | 0 | 0 | 0
Interest expense, net of interest income | (1) | 0 | (1) | (2)
Depreciation and amortization of intangible assets | 689 | 633 | 2,001 | 1,191
Income (loss) before taxes, excluding unallocated corporate activity | 2,580 | 1,458 | 7,931 | 5,707
Unallocated corporate activity |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Unallocated corporate activity | $ (20,046) | $ (20,380) | $ (64,821) | $ (56,354)

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