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, 2021	$ 1,327,550	$ 805	$ 121,904	$ 1,667,104	$ (20,604)	$ (441,659)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Werner	53,749			53,749
Net income attributable to noncontrolling interest	0
Other comprehensive income	4,784				4,784
Purchases of common stock	(36,180)					(36,180)
Dividends on common stock	(7,807)			(7,807)
Equity compensation activity	(3,658)		(3,773)			115
Non-cash equity compensation expense	3,026		3,026
Ending balance at Mar. 31, 2022	1,341,464	805	121,157	1,713,046	(15,820)	(477,724)
Beginning balance at Dec. 31, 2021	35,947
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income attributable to noncontrolling interest	1,286
Ending balance at Mar. 31, 2022	37,233
Beginning balance at Dec. 31, 2022	1,443,635	805	129,837	1,875,873	(11,292)	(551,588)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Werner	35,224			35,224
Net income attributable to noncontrolling interest	0
Other comprehensive income	2,028				2,028
Dividends on common stock	(8,239)			(8,239)
Equity compensation activity	(5,514)		(5,190)			(324)
Non-cash equity compensation expense	3,403		3,403
Ending balance at Mar. 31, 2023	1,470,537	$ 805	$ 128,050	$ 1,902,858	$ (9,264)	$ (551,912)
Beginning balance at Dec. 31, 2022	38,699
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income attributable to noncontrolling interest	310
Ending balance at Mar. 31, 2023	$ 39,009