Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Revenue:
Trucking revenue	$ 297,624	$ 321,283
Strategic Capacity Solutions revenue	89,831	67,085
Intermodal revenue	21,264	22,658
Base revenue	408,719	411,026
Fuel surcharge revenue	103,709	108,382
Total revenue	512,428	519,408
Operating expenses and costs:
Salaries, wages and employee benefits	142,263	136,538
Fuel and fuel taxes	131,162	137,195
Purchased transportation	127,949	120,076
Depreciation and amortization	45,058	49,263
Operations and maintenance	43,559	42,179
Insurance and claims	20,556	22,501
Operating taxes and licenses	5,504	5,460
Communications and utilities	4,124	4,395
Gain on disposal of assets	(2,151)	(3,615)
Other	17,676	18,065
Total operating expenses and costs	535,700	532,057
Operating loss	(23,272)	(12,649)
Other expenses (income):
Interest expense	4,052	3,345
Other, net	(64)	(252)
Total other expenses, net	3,988	3,093
Loss before income taxes	(27,260)	(15,742)
Income tax benefit:
Current	0	0
Deferred	(9,589)	(4,965)
Total income tax benefit	(9,589)	(4,965)
Net loss	$ (17,671)	$ (10,777)
Net loss per share:
Basic loss per share (in Dollars per share)	$ (1.71)	$ (1.05)
Diluted loss per share (in Dollars per share)	$ (1.71)	$ (1.05)