Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues	$ 242,824	$ 267,923
Cost of revenues	196,560	220,735
Selling, general and administrative expenses	25,523	22,451
Other operating income, net	(16)	(124)
Operating income	20,757	24,861
Foreign currency exchange loss (gain)	54	(368)
Interest expense, net	2,920	2,520
Income from continuing operations before income taxes	17,783	22,709
Provision for income taxes	6,041	7,842
Income from continuing operations	11,742	14,867
Income from discontinued operations, net of tax	1,152	2,508
Gain from disposal of discontinued operations, net of tax	22,117
Net income	$ 35,011	$ 17,375
Income per common share -basic:
Income from continuing operations (in Dollars per share)	$ 0.14	$ 0.18
Income from discontinued operations (in Dollars per share)	$ 0.27	$ 0.03
Net income (in Dollars per share)	$ 0.41	$ 0.21
Income per common share -diluted:
Income from continuing operations (in Dollars per share)	$ 0.13	$ 0.16
Income from discontinued operations (in Dollars per share)	$ 0.23	$ 0.02
Net income (in Dollars per share)	$ 0.36	$ 0.18