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OPERATING SEGMENT DATA - Operating Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
OPERATING EXPENSES |  |  |  |
Salaries, wages, and benefits | $ 455,685 | $ 456,022 | $ 1,348,491 | $ 1,342,123
Fuel, supplies, and expenses | 109,017 | 122,552 | 330,676 | 368,432
Depreciation and amortization | 36,611 | 37,141 | 109,720 | 107,962
Contingent consideration | (91,910) | (17,840) | (80,740) | (12,800)
Lease impairment charges |  | 30,162 |  | 30,162
Other | 48,943 | 44,786 | 141,713 | 137,910
Total consolidated operating expenses | 928,131 | 1,083,259 | 2,971,101 | 3,229,542
Operating Segments | Asset Based |  |  |  |
OPERATING EXPENSES |  |  |  |
Salaries, wages, and benefits | 358,469 | 357,582 | 1,056,146 | 1,037,725
Fuel, supplies, and expenses | 79,170 | 91,493 | 243,152 | 276,678
Operating taxes and licenses | 13,538 | 13,865 | 40,624 | 41,938
Insurance | 19,819 | 13,654 | 51,265 | 39,816
Communications and utilities | 4,793 | 4,729 | 14,004 | 14,586
Depreciation and amortization | 26,967 | 26,537 | 80,620 | 76,721
Rents and purchased transportation | 73,600 | 79,233 | 209,586 | 271,899
Shared services | 69,463 | 70,699 | 206,622 | 209,780
Lease impairment charges |  | 700 |  | 700
(Gain) loss on sale of property and equipment and lease impairment charges | (1,688) | 540 | (1,630) | 905
Innovative technology costs |  | 7,300 |  | 21,711
Other | 1,571 | 731 | 3,257 | 3,640
Total consolidated operating expenses | 645,702 | 666,363 | 1,903,646 | 1,995,399
Operating Segments | Asset-Light |  |  |  |
OPERATING EXPENSES |  |  |  |
Purchased transportation | 331,107 | 365,217 | 1,014,476 | 1,078,482
Salaries, wages, and benefits | 30,150 | 31,193 | 91,490 | 98,688
Supplies and expenses | 2,702 | 2,625 | 8,279 | 9,159
Depreciation and amortization | 5,037 | 5,097 | 15,154 | 15,250
Shared services | 17,547 | 16,218 | 51,118 | 49,232
Contingent consideration | (91,910) | (17,840) | (80,740) | (12,800)
Lease impairment charges |  | 14,407 |  | 14,407
Other | 5,912 | 6,099 | 17,704 | 19,417
Total consolidated operating expenses | 300,545 | 423,016 | 1,117,481 | 1,271,835
Other and eliminations |  |  |  |
OPERATING EXPENSES |  |  |  |
Lease impairment charges |  | 15,100 |  | 15,100
Total consolidated operating expenses | $ (18,116) | $ (6,120) | $ (50,026) | $ (37,692)

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- Definition Fuel costs incurred that are directly related to services rendered during the reporting period and the cost of materials used in services rendered during the reporting period. It also includes costs related to selling products and services, as well as other general and administrative expenses not separately disclosed in operating expenses and costs. + References No definition available. + Details
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