CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Contract revenue	$ 199,030	$ 250,354
Operating expenses:
Contract costs	185,231	242,504
Amortization of intangibles	2,438	2,471
General and administrative	17,134	23,654
Other charges	3,688	3,010
Total operating expenses	208,491	271,639
Operating loss	(9,461)	(21,285)
Non-operating expenses:
Interest expense, net	(3,547)	(8,297)
Debt covenant suspension and extinguishment charges	(63)	(35,869)
Other, net	(60)	(97)
Total non-operating expense	(3,670)	(44,263)
Loss from continuing operations before income taxes	(13,131)	(65,548)
Provision (benefit) for income taxes	167	(20,604)
Loss from continuing operations	(13,298)	(44,944)
Income (loss) from discontinued operations net of provision for income taxes	(1,853)	35,120
Net loss	$ (15,151)	$ (9,824)
Basic income (loss) per share attributable to Company shareholders:
Loss from continuing operations, basic (in USD per share)	$ (0.22)	$ (0.90)
Loss from discontinued operations, basic (in USD per share)	(0.03)	0.70
Net loss, basic (in USD per share)	(0.25)	(0.20)
Diluted income (loss) per share attributable to Company shareholders:
Loss from continuing operations, diluted (in USD per share)	(0.22)	(0.90)
Loss from discontinued operations, diluted (in USD per share)	(0.03)	0.70
Net loss, diluted (in USD per share)	$ (0.25)	$ (0.20)
Weighted average number of common shares outstanding:
Basic (in shares)	60,756,314	49,819,388
Diluted (in shares)	60,756,314	49,819,388