CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Operating revenues	$ 712,114	$ 769,080
Operating expenses:
Salaries, wages and benefits	243,225	265,403
Fuel	63,092	77,622
Supplies and maintenance	60,040	61,775
Taxes and licenses	22,344	25,164
Insurance and claims	43,777	36,362
Depreciation and amortization	70,049	74,270
Rent and purchased transportation	206,142	203,925
Communications and utilities	4,357	4,706
Other	4,920	4,265
Total operating expenses	717,946	753,492
Operating income (loss)	(5,832)	15,588
Other expense (income):
Interest expense	9,537	7,948
Interest income	(1,492)	(1,685)
Loss on investments in equity securities	2	138
Loss (earnings) from equity method investment	(123)	133
Other	(368)	(261)
Total other expense, net	7,556	6,273
Income (loss) before income taxes	(13,388)	9,315
Income tax expense (benefit)	(3,167)	3,067
Net income (loss)	(10,221)	6,248
Net loss attributable to noncontrolling interest	123	64
Net income (loss) attributable to Werner	$ (10,098)	$ 6,312
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.16)	$ 0.10
Diluted (in dollars per share)	$ (0.16)	$ 0.10
Weighted-average common shares outstanding:
Basic (in shares)	61,890	63,472
Diluted (in shares)	61,890	63,727