v3.26.1
Segment Reporting Revenues and Expenses (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting        
Operating revenues $ 1,568.7 $ 1,420.5 $ 2,967.2 $ 2,822.3
Operating supplies and expenses—net 185.8 180.5 373.6 355.6
Income from operations 71.4 55.0 104.8 97.1
Nonoperating Expense 5.8 7.6 12.0 14.9
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 65.6 47.4 92.8 82.2
Operating Segments        
Segment Reporting        
Revenues excluding fuel surcharge 1,265.7 1,226.9 2,449.5 2,433.0
Fuel Surcharge Revenue 241.7 139.5 397.9 284.2
Operating revenues 1,507.4 1,366.4 2,847.4 2,717.2
Other Income 103.7 96.8 203.3 185.5
Income from operations 81.9 64.1 119.5 111.1
Operating Segments | Truckload        
Segment Reporting        
Revenues excluding fuel surcharge 627.6 622.2 1,245.6 1,235.9
Fuel Surcharge Revenue 165.7 97.7 276.8 198.5
Operating revenues 793.3 719.9 1,522.4 1,434.4
Compensation Expense, Excluding Cost of Good and Service Sold 271.7 268.5 541.6 538.1
Purchased transportation, fuel, and fuel taxes 214.0 154.1 386.8 314.7
Depreciation, Depletion and Amortization 83.3 84.7 167.6 169.8
Operating supplies and expenses—net 80.7 79.9 169.2 162.3
Segment Reporting, Other Segment Item, Amount 92.2 92.6 185.6 184.3
Income from operations 51.4 40.1 71.6 65.2
Operating Segments | Intermodal [Member]        
Segment Reporting        
Revenues excluding fuel surcharge 262.0 265.1 515.5 525.5
Fuel Surcharge Revenue 73.8 40.4 117.5 82.8
Operating revenues 335.8 305.5 633.0 608.3
Compensation Expense, Excluding Cost of Good and Service Sold 43.8 44.4 86.1 87.9
Purchased transportation, fuel, and fuel taxes 219.7 190.6 411.0 383.0
Depreciation, Depletion and Amortization 12.9 13.2 25.9 26.4
Operating supplies and expenses—net 17.6 19.0 34.4 36.2
Segment Reporting, Other Segment Item, Amount 23.4 22.2 46.3 44.9
Income from operations 18.4 16.1 29.3 29.9
Operating Segments | Logistics        
Segment Reporting        
Revenues excluding fuel surcharge 376.1 339.6 688.4 671.6
Fuel Surcharge Revenue 2.2 1.4 3.6 2.9
Operating revenues 378.3 341.0 692.0 674.5
Compensation Expense, Excluding Cost of Good and Service Sold 25.6 29.6 50.2 59.3
Purchased transportation, fuel, and fuel taxes 304.2 269.0 552.0 529.6
Depreciation, Depletion and Amortization 0.2 0.3 0.3 0.5
Operating supplies and expenses—net 16.5 15.0 31.9 28.9
Segment Reporting, Other Segment Item, Amount 19.7 19.2 39.0 40.2
Income from operations 12.1 7.9 18.6 16.0
Intersegment Eliminations        
Segment Reporting        
Revenues excluding fuel surcharge (41.1) (41.7) (81.4) (78.2)
Fuel Surcharge Revenue (1.3) (1.0) (2.1) (2.2)
Corporate And Reconciling Items        
Segment Reporting        
Income from operations $ (10.5) $ (9.1) $ (14.7) $ (14.0)