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OPERATING SEGMENT DATA - Operating Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
OPERATING EXPENSES |  |  |  |
Salaries, wages, and benefits | $ 456,022 | $ 444,164 | $ 1,342,028 | $ 1,301,944
Fuel, supplies, and expenses | 122,700 | 125,349 | 369,466 | 365,213
Depreciation and amortization | 37,141 | 34,229 | 107,962 | 103,509
Contingent consideration | (17,840) |  | (12,800) | 810
Gain on sale of subsidiary |  |  |  | (402)
Lease impairment charges | 30,162 |  | 30,162 |
Other | 44,638 | 39,546 | 136,971 | 116,527
Total consolidated operating expenses | 1,083,259 | 1,160,394 | 3,229,542 | 3,521,196
Operating right-of-use assets, Lease impairment charges | 28,100 |  | 28,124 |
Operating Segments | Asset Based |  |  |  |
OPERATING EXPENSES |  |  |  |
Salaries, wages, and benefits | 357,582 | 332,359 | 1,037,725 | 973,924
Fuel, supplies, and expenses | 91,493 | 97,279 | 276,678 | 281,406
Operating taxes and licenses | 13,865 | 13,089 | 41,938 | 38,405
Insurance | 13,654 | 13,180 | 39,816 | 35,808
Communications and utilities | 4,729 | 4,794 | 14,586 | 14,129
Depreciation and amortization | 26,537 | 24,117 | 76,721 | 72,885
Rents and purchased transportation | 79,233 | 123,714 | 271,899 | 348,249
Shared services | 70,699 | 72,286 | 209,780 | 215,020
(Gain) loss on sale of property and equipment and lease impairment charges | 540 | (5,910) | 905 | (9,975)
Lease impairment charges | 700 |  | 700 |
Innovative technology costs | 7,300 | 6,068 | 21,711 | 20,982
Other | 731 | 1,243 | 3,640 | 2,629
Total consolidated operating expenses | 666,363 | 682,219 | 1,995,399 | 1,993,462
Noncash gain on a like-kind property exchange of a service center |  | (4,300) |  | (4,300)
Operating Segments | Asset-Light |  |  |  |
OPERATING EXPENSES |  |  |  |
Purchased transportation | 365,217 | 425,567 | 1,078,482 | 1,382,107
Supplies and expenses | 2,773 | 4,378 | 10,193 | 11,907
Depreciation and amortization | 5,097 | 5,072 | 15,250 | 15,720
Shared services | 47,411 | 56,371 | 147,825 | 164,554
Contingent consideration | (17,840) |  | (12,800) | 810
Gain on sale of subsidiary |  |  |  | (402)
Lease impairment charges | 14,407 |  | 14,407 |
Other | 5,951 | 8,463 | 18,478 | 21,499
Total consolidated operating expenses | 423,016 | 499,851 | 1,271,835 | 1,596,195
Other and eliminations |  |  |  |
OPERATING EXPENSES |  |  |  |
Lease impairment charges | 15,100 |  | 15,100 |
Total consolidated operating expenses | $ (6,120) | $ (21,676) | $ (37,692) | $ (68,461)

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