CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 35,534	$ 55,035
Other comprehensive income (loss):
Foreign currency translation adjustments	3,001	1,153
Change in fair value of interest rate swaps, net of tax	(973)	3,631
Other comprehensive income, net	2,028	4,784
Comprehensive income	37,562	59,819
Comprehensive income attributable to noncontrolling interest	(310)	(1,286)
Comprehensive income attributable to Werner	$ 37,252	$ 58,533