CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Statement [Abstract]      
Contract revenue $ 908,994 $ 1,594,370 $ 1,495,125
Operating expenses:      
Contract costs 868,240 1,497,618 1,360,014
Amortization of intangibles 9,874 9,885 9,907
General and administrative 77,335 108,622 122,368
Gain on sale of subsidiary (12,826) 0 0
Other charges 18,469 6,692 0
Total operating expenses 961,092 1,622,817 1,492,289
Operating income (loss) (52,098) (28,447) 2,836
Non-operating expenses:      
Interest expense, net (27,203) (30,359) (31,220)
Debt covenant suspension and extinguishment charges (39,178) (15,176) (11,573)
Other, net (101) (397) (733)
Total other income (expense) (66,482) (45,932) (43,526)
Loss from continuing operations before income taxes (118,580) (74,379) (40,690)
Provision (benefit) for income taxes (54,031) 229 (3,992)
Loss from continuing operations (64,549) (74,608) (36,698)
Income (loss) from discontinued operations, net of provision for income taxes 96,032 (5,219) 20,831
Net income (loss) $ 31,483 $ (79,827) $ (15,867)
Basic income (loss) per share attributable to Company shareholders:      
Loss from continuing operations (in dollar per share) $ (1.12) $ (1.51) $ (0.76)
Income (loss) from discontinued operations (in dollar per share) 1.66 (0.11) 0.44
Net income (loss) (in dollar per share) 0.54 (1.62) (0.32)
Diluted income (loss) per share attributable to Company shareholders:      
Loss from continuing operations (in dollar per share) (1.12) (1.51) (0.76)
Income (loss) from discontinued operations (in dollar per share) 1.66 (0.11) 0.44
Net income (loss) (in dollar per share) $ 0.54 $ (1.62) $ (0.32)
Weighted average number of common shares outstanding:      
Basic (in shares) 57,759,988 49,310,044 48,560,167
Diluted (in shares) 57,759,988 49,310,044 48,560,167