v3.26.1
SEGMENT INFORMATION - Schedule of Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Revenues $ 914,306 $ 734,075 $ 1,704,347 $ 1,427,445
Total revenues 933,927 753,148 1,742,537 1,465,262
Less operating expenses:        
Salaries, wages and benefits 310,964 250,451 590,625 493,676
Fuel 119,897 60,401 202,342 123,493
Supplies and maintenance 77,648 62,260 145,453 122,300
Taxes and licenses 23,383 23,100 46,211 45,444
Insurance and claims 41,425 (6,813) 83,353 36,964
Depreciation and amortization 78,811 70,757 155,008 140,806
Rent and purchased transportation 248,927 228,280 470,031 434,422
Communications and utilities 4,866 3,730 9,457 8,087
Other segment items 6,991 (5,339) 15,047 (419)
Total operating expenses 917,006 686,827 1,721,621 1,404,773
Operating income 16,921 66,321 20,916 60,489
Restructuring and impairment 4,094 0 4,094 0
Gain on contingent earnout liability settlement     0 7,815
Inter-segment eliminations        
Segment Reporting [Line Items]        
Revenues 2 (4,749) (105) (8,812)
Total revenues 2 (4,749) (105) (8,812)
Reportable segment revenues        
Segment Reporting [Line Items]        
Revenues 914,304 738,824 1,704,452 1,436,257
Less operating expenses:        
Salaries, wages and benefits 300,647 243,167 573,678 479,126
Fuel 119,509 60,069 201,626 122,862
Supplies and maintenance 73,771 56,626 138,183 110,637
Taxes and licenses 23,211 22,906 45,862 45,086
Insurance and claims 41,302 (7,049) 83,099 36,647
Depreciation and amortization 76,979 69,075 151,234 135,813
Rent and purchased transportation 246,279 230,403 465,040 438,075
Communications and utilities 4,662 3,335 9,043 7,300
Gains on sales of property and equipment (2,139) (6,219) (6,856) (9,806)
Other segment items 6,835 (1,906) 8,362 3,491
Total operating expenses 891,056 670,407 1,669,271 1,369,231
Operating income 23,248 68,417 35,181 67,026
Other operating segments        
Segment Reporting [Line Items]        
Total revenues 19,621 19,073 38,190 37,817
Other operating segments        
Less operating expenses:        
Operating income (6,327) (2,096) (14,265) (6,537)
Truckload Transportation Services        
Segment Reporting [Line Items]        
Revenues 702,574 512,898 1,296,779 1,010,710
Less operating expenses:        
Restructuring and impairment 4,100   4,100  
Severance costs   900   900
Gain (loss) from litigation settlement   45,700   45,700
Truckload Transportation Services | Baylor Trucking, Inc.        
Less operating expenses:        
Gain on contingent earnout liability settlement   7,900   7,800
Truckload Transportation Services | Inter-segment eliminations        
Segment Reporting [Line Items]        
Revenues 2 (4,749) (105) (8,812)
Truckload Transportation Services | Reportable segment revenues        
Segment Reporting [Line Items]        
Revenues 702,572 517,647 1,296,884 1,019,522
Total revenues 702,572 517,647 1,296,884 1,019,522
Less operating expenses:        
Salaries, wages and benefits 282,579 225,123 538,163 442,826
Fuel 118,606 59,731 200,105 122,164
Supplies and maintenance 70,798 53,710 132,262 105,048
Taxes and licenses 22,995 22,662 45,418 44,619
Insurance and claims 40,193 (7,555) 81,463 35,519
Depreciation and amortization 73,287 65,207 143,774 128,253
Rent and purchased transportation 58,616 40,110 106,775 78,563
Communications and utilities 4,333 3,107 8,332 6,715
Gains on sales of property and equipment (2,040) (5,799) (6,656) (9,087)
Other segment items 6,087 (2,738) 6,192 1,729
Total operating expenses 675,454 453,558 1,255,828 956,349
Operating income 27,118 64,089 41,056 63,173
Werner Logistics        
Segment Reporting [Line Items]        
Revenues 211,732 221,177 407,568 416,735
Less operating expenses:        
Severance costs   400   400
Werner Logistics | Inter-segment eliminations        
Segment Reporting [Line Items]        
Revenues 0 0 0 0
Werner Logistics | Reportable segment revenues        
Segment Reporting [Line Items]        
Revenues 211,732 221,177 407,568 416,735
Total revenues 211,732 221,177 407,568 416,735
Less operating expenses:        
Salaries, wages and benefits 18,068 18,044 35,515 36,300
Fuel 903 338 1,521 698
Supplies and maintenance 2,973 2,916 5,921 5,589
Taxes and licenses 216 244 444 467
Insurance and claims 1,109 506 1,636 1,128
Depreciation and amortization 3,692 3,868 7,460 7,560
Rent and purchased transportation 187,663 190,293 358,265 359,512
Communications and utilities 329 228 711 585
Gains on sales of property and equipment (99) (420) (200) (719)
Other segment items 748 832 2,170 1,762
Total operating expenses 215,602 216,849 413,443 412,882
Operating income $ (3,870) $ 4,328 $ (5,875) $ 3,853