Segment Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Disclosure Of Segment Financial Information

The following table summarizes our segment information (in thousands):

	Years Ended December 31,
	2018			2017			2016
Revenues
Truckload Transportation Services	$	1,881,323		$	1,635,244		$	1,533,981
Werner Logistics	518,078			417,639			417,172
Other	56,903			62,745			57,062
Corporate	2,759			1,938			1,749
Subtotal	2,459,063			2,117,566			2,009,964
Inter-segment eliminations	(1,149		)	(829		)	(973		)
Total	$	2,457,914		$	2,116,737		$	2,008,991
Operating Income
Truckload Transportation Services	$	202,581		$	138,059		$	107,713
Werner Logistics	20,378			8,683			20,734
Other	(453		)	35			(6,177		)
Corporate	1,709			(2,957		)	3,800
Total	$	224,215		$	143,820		$	126,070

Schedule Of Revenue And Long-Lived Assets, By Geographical Areas

Information about the geographic areas in which we conduct business is summarized below (in thousands) as of and for the years ended December 31, 2018, 2017 and 2016. Operating revenues for foreign countries include revenues for (i) shipments with an origin or destination in that country and (ii) other services provided in that country. If both the origin and destination are in a foreign country, the revenues are attributed to the country of origin.

	2018		2017		2016
Revenues
United States	$	2,145,098	$	1,837,525	$	1,760,214
Foreign countries
Mexico	233,116		210,228		183,058
Other	79,700		68,984		65,719
Total foreign countries	312,816		279,212		248,777
Total	$	2,457,914	$	2,116,737	$	2,008,991
Long-lived Assets
United States	$	1,452,532	$	1,321,206	$	1,341,703
Foreign countries
Mexico	34,741		25,309		20,614
Other	289		348		321
Total foreign countries	35,030		25,657		20,935
Total	$	1,487,562	$	1,346,863	$	1,362,638