Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Disclosure Of Segment Financial Information

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

	Years Ended December 31,
	2015			2014			2013
Revenues
Truckload Transportation Services	$	1,644,874		$	1,702,137		$	1,657,854
Value Added Services	393,174			390,645			361,384
Other	54,512			46,588			11,342
Corporate	2,297			2,803			3,081
Subtotal	2,094,857			2,142,173			2,033,661
Inter-segment eliminations	(1,328		)	(2,884		)	(4,478		)
Total	$	2,093,529		$	2,139,289		$	2,029,183
Operating Income
Truckload Transportation Services	$	189,850		$	152,992		$	119,597
Value Added Services	16,898			7,535			14,664
Other	(7,513		)	(3,991		)	3,947
Corporate	1,221			3,552			1,518
Total	$	200,456		$	160,088		$	139,726

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, 2015, 2014 and 2013. 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.

	2015		2014		2013
Revenues
United States	$	1,821,026	$	1,857,624	$	1,768,442
Foreign countries
Mexico	191,453		187,124		172,009
Other	81,050		94,541		88,732
Total foreign countries	272,503		281,665		260,741
Total	$	2,093,529	$	2,139,289	$	2,029,183
Long-lived Assets
United States	$	1,134,433	$	989,815	$	955,543
Foreign countries
Mexico	19,879		23,734		21,654
Other	158		233		321
Total foreign countries	20,037		23,967		21,975
Total	$	1,154,470	$	1,013,782	$	977,518