v3.26.1
Segment Information - Schedule of Financial Information with Respect to our Segment (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting Information [Line Items]        
Revenue from operations $ 1,554,004 $ 1,407,724 $ 2,888,700 $ 2,782,582
Less significant expenses:        
Salaries and wages 483,973 481,633 942,473 957,903
Employee benefit costs 203,375 190,460 383,170 372,275
Operating supplies and expenses 177,683 142,457 324,401 292,349
General supplies and expenses 46,413 41,676 93,482 81,556
Operating taxes and licenses 34,293 34,983 67,322 70,586
Insurance and claims 18,919 18,794 36,625 36,274
Communications and utilities 8,190 9,296 17,812 20,099
Depreciation and amortization 91,708 90,663 184,015 179,795
Purchased transportation 33,779 28,544 61,541 56,207
Miscellaneous (income) expense, net (9,630) 11,323 (4,783) 19,588
Total non-operating (income) expense (2,167) 679 (2,504) 90
Provision for income taxes 116,867 88,590 196,287 172,574
Net income $ 350,601 $ 268,626 $ 588,859 $ 523,286