Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues	$ 497,173	$ 498,086	$ 1,504,073	$ 1,340,298
Operating expenses:
Purchased transportation costs	326,251	347,247	1,000,815	926,600
Personnel and related benefits	65,997	55,533	193,846	148,574
Other operating expenses	81,559	61,781	213,590	174,559
Depreciation and amortization	8,443	6,319	22,855	16,788
Acquisition transaction expenses	564	1,926	564	2,305
Total operating expenses	482,814	472,806	1,431,670	1,268,826
Operating income	14,359	25,280	72,403	71,472
Interest expense	4,913	3,827	13,895	8,936
Income before provision for income taxes	9,446	21,453	58,508	62,536
Provision for income taxes	3,655	7,040	22,642	22,941
Net income available to common stockholders	$ 5,791	$ 14,413	$ 35,866	$ 39,595
Earnings per share available to common stockholders:
Basic	$ 0.15	$ 0.38	$ 0.94	$ 1.05
Diluted	$ 0.15	$ 0.37	$ 0.91	$ 1.01
Weighted average common stock outstanding:
Basic	38,264	37,920	38,149	37,827
Diluted	39,471	39,380	39,446	39,268