v3.26.1
OPERATING SEGMENT DATA - Operating Expenses By Category (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting Information [Line Items]          
Salaries, wages, and benefits $ 470,613   $ 458,115 $ 909,134 $ 890,003
Rents, purchased transportation, and other costs of services 428,297   328,570 785,920 662,341
Fuel, supplies, and expenses 125,914   110,530 233,962 216,476
Depreciation and amortization 44,681   40,926 88,985 80,890
Asset Impairment Charges 85,266     85,266  
Restructuring Charges 2,173     2,173  
Contingent Consideration, Expense     (2,650)   (2,650)
Other 48,212   49,456 95,072 98,334
Total consolidated operating expenses 1,205,156   984,947 2,200,512 1,945,394
Asset-Light | Trade name          
Segment Reporting Information [Line Items]          
Impairment of indefinite-lived intangible asset 25,700 $ 6,600      
Operating Segments | Asset-Based          
Segment Reporting Information [Line Items]          
Salaries, wages, and benefits 374,101   365,929 729,240 710,070
Fuel, supplies, and expenses 97,832   79,834 179,417 157,476
Depreciation and amortization 36,632   31,664 72,843 62,254
Restructuring Charges 953     953  
Other 2,022   2,301 2,353 3,293
Total consolidated operating expenses 709,419   662,283 1,346,949 1,282,160
Operating Segments | Asset-Light          
Segment Reporting Information [Line Items]          
Salaries, wages, and benefits 29,095   25,629 51,840 51,178
Depreciation and amortization 3,881   4,605 7,891 9,223
Asset Impairment Charges 34,503     34,503  
Restructuring Charges 712     712  
Contingent Consideration, Expense     (2,650)   (2,650)
Other 6,954   4,834 11,825 10,725
Total consolidated operating expenses 470,053   341,331 847,568 701,723
Operating Segments | Asset-Light | Leaseholds          
Segment Reporting Information [Line Items]          
Asset Impairment Charges 8,800     8,800  
Operating Segments | Asset-Light | Trade name          
Segment Reporting Information [Line Items]          
Impairment of indefinite-lived intangible asset 25,700     25,700  
Other and eliminations          
Segment Reporting Information [Line Items]          
Restructuring Charges 500     500  
Total consolidated operating expenses 25,684   $ (18,667) 5,995 $ (38,489)
Other and eliminations | Asset-Light          
Segment Reporting Information [Line Items]          
Asset Impairment Charges $ 8,800     $ 8,800