CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY AND TEMPORARY EQUITY - REDEEMABLE NONCONTROLLING INTEREST - USD ($) $ in Thousands	Total	Common Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance at Dec. 31, 2020	$ 1,195,040	$ 805	$ 116,039	$ 1,438,916	$ (22,833)	$ (337,887)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Werner	259,052			259,052
Other comprehensive income, net	2,229				2,229
Purchase of shares of common stock	(104,444)					(104,444)
Dividends on common stock	(30,864)			(30,864)
Equity compensation activity	(4,270)		(4,942)			672
Non-cash equity compensation expense	10,807		10,807
Ending balance at Dec. 31, 2021	1,327,550	805	121,904	1,667,104	(20,604)	(441,659)
Beginning balance at Dec. 31, 2020	0
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income (loss) attributable to noncontrolling interest	2,426
Investment in noncontrolling interest	35,322
Purchase accounting adjustments	(1,766)
Distribution to noncontrolling interest	(35)
Ending balance at Dec. 31, 2021	35,947
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Werner	241,256			241,256
Other comprehensive income, net	9,312				9,312
Purchase of shares of common stock	(110,400)					(110,400)
Dividends on common stock	(32,487)			(32,487)
Equity compensation activity	(4,082)		(4,553)			471
Non-cash equity compensation expense	12,486		12,486
Ending balance at Dec. 31, 2022	1,443,635	805	129,837	1,875,873	(11,292)	(551,588)
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income (loss) attributable to noncontrolling interest	4,324
Distribution to noncontrolling interest	(1,572)
Ending balance at Dec. 31, 2022	38,699
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Werner	112,382			112,382
Other comprehensive income, net	1,608				1,608
Dividends on common stock	(34,870)			(34,870)
Equity compensation activity	(6,359)		(6,886)			527
Non-cash equity compensation expense	11,943		11,943
Ending balance at Dec. 31, 2023	1,528,339	$ 805	$ 134,894	$ 1,953,385	$ (9,684)	$ (551,061)
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income (loss) attributable to noncontrolling interest	(92)
Ending balance at Dec. 31, 2023	$ 38,607