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OPERATING SEGMENT DATA - Operating Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
OPERATING EXPENSES |  |  |  |
Salaries, wages, and benefits | $ 449,024 | $ 442,875 | $ 886,006 | $ 857,780
Fuel, supplies, and expenses | 124,148 | 129,505 | 246,766 | 239,864
Depreciation and amortization | 35,811 | 34,884 | 70,821 | 69,280
Contingent consideration | (10,000) |  | 5,040 | 810
Gain on sale of subsidiary |  |  |  | (402)
(Gain) loss on sale of property and equipment |  |  | 1,188 | (4,073)
Other | 46,653 | 40,152 | 92,333 | 76,981
Total consolidated operating expenses | 1,061,348 | 1,185,654 | 2,146,283 | 2,360,802
Operating Segments | Asset Based |  |  |  |
OPERATING EXPENSES |  |  |  |
Salaries, wages, and benefits | 344,538 | 328,068 | 680,143 | 641,565
Fuel, supplies, and expenses | 90,897 | 99,296 | 185,185 | 184,127
Operating taxes and licenses | 14,094 | 12,823 | 28,073 | 25,316
Insurance | 12,889 | 12,197 | 26,162 | 22,628
Communications and utilities | 4,553 | 4,648 | 9,857 | 9,335
Depreciation and amortization | 25,273 | 24,463 | 50,184 | 48,768
Rents and purchased transportation | 101,922 | 121,550 | 192,666 | 224,535
Shared services | 74,468 | 75,584 | 139,081 | 142,734
(Gain) loss on sale of property and equipment | 416 | (1,370) | 365 | (4,065)
Innovative technology costs | 8,343 | 7,954 | 14,411 | 14,914
Other | 1,297 | 753 | 2,909 | 1,386
Total consolidated operating expenses | 678,690 | 685,966 | 1,329,036 | 1,311,243
Operating Segments | Asset-Light |  |  |  |
OPERATING EXPENSES |  |  |  |
Purchased transportation | 343,102 | 448,160 | 713,265 | 956,540
Supplies and expenses | 3,348 | 4,263 | 7,420 | 7,529
Depreciation and amortization | 5,085 | 5,468 | 10,153 | 10,648
Shared services | 48,985 | 57,986 | 100,414 | 108,183
Contingent consideration | (10,000) |  | 5,040 | 810
Gain on sale of subsidiary |  | (402) |  | (402)
Other | 6,116 | 6,701 | 12,527 | 13,036
Total consolidated operating expenses | 396,636 | 522,176 | 848,819 | 1,096,344
Other and eliminations |  |  |  |
OPERATING EXPENSES |  |  |  |
Total consolidated operating expenses | $ (13,978) | $ (22,488) | $ (31,572) | $ (46,785)

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