v3.26.1
Segment Information - Schedule of Financial Information with Respect to our Segment (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Revenue from operations $ 1,334,696 $ 1,374,858
Less significant expenses:    
Salaries and wages 458,500 476,270
Employee benefit costs 179,795 181,815
Operating supplies and expenses 146,718 149,892
General supplies and expenses 47,069 39,880
Operating taxes and licenses 33,029 35,603
Insurance and claims 17,706 17,480
Communications and utilities 9,622 10,803
Depreciation and amortization 92,307 89,132
Purchased transportation 27,762 27,663
Miscellaneous expenses, net 4,847 8,265
Total non-operating income (337) (589)
Provision for income taxes 79,420 83,984
Net income $ 238,258 $ 254,660