CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Operating revenues	$ 808,610	$ 712,114
Operating expenses:
Salaries, wages and benefits	279,661	243,225
Fuel	82,445	63,092
Supplies and maintenance	67,805	60,040
Taxes and licenses	22,828	22,344
Insurance and claims	41,928	43,777
Depreciation and amortization	76,197	70,049
Rent and purchased transportation	221,104	206,142
Communications and utilities	4,591	4,357
Other	8,056	4,920
Total operating expenses	804,615	717,946
Operating income (loss)	3,995	(5,832)
Other expense (income):
Interest expense	11,650	9,537
Interest income	(1,503)	(1,492)
Loss (gain) on investments in equity securities	(26)	2
Earnings from equity method investment	(86)	(123)
Other	(98)	(368)
Total other expense, net	9,937	7,556
Loss before income taxes	(5,942)	(13,388)
Income tax benefit	(1,481)	(3,167)
Net loss	(4,461)	(10,221)
Net loss attributable to noncontrolling interest	199	123
Net loss attributable to Werner	$ (4,262)	$ (10,098)
Loss per share:
Basic (in dollars per share)	$ (0.07)	$ (0.16)
Diluted (in dollars per share)	$ (0.07)	$ (0.16)
Weighted-average common shares outstanding:
Basic (in shares)	59,910	61,890
Diluted (in shares)	59,910	61,890