Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues	$ 286,554	$ 250,854
Operating expenses	211,750	184,872
Gross margin	74,804	65,982
Selling, general and administrative expenses	89,313	73,362
Exit costs and other related charges (credits) (see Note 16)	(1,247)	0
Gain on revaluation of contingent consideration	(1,174)	0
Operating loss	(12,088)	(7,380)
Interest expense, net	3,158	2,935
Foreign currency loss	334	38
Other expense (income), net	7	(10)
Loss from continuing operations before income taxes	(15,587)	(10,343)
Less: Income tax benefit	(6,079)	(3,783)
Loss from continuing operations	(9,508)	(6,560)
Income from discontinued operations, net of income tax	0	126
Net loss	$ (9,508)	$ (6,434)
Basic earnings (loss) per common share:
Continuing operations (in usd per share)	$ (0.32)	$ (0.27)
Discontinued operations (in usd per share)	0.00	0.00
Net loss (in usd per share)	(0.32)	(0.27)
Diluted earnings (loss) per common share:
Continuing operations (in usd per share)	(0.32)	(0.27)
Discontinued operations (in usd per share)	0.00	0.00
Net loss (in usd per share)	$ (0.32)	$ (0.27)