CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 25, 2014	Jan. 26, 2013	Jan. 25, 2014	Jan. 26, 2013
REVENUES:
Contract revenues	$ 390,518	$ 369,326	$ 903,238	$ 692,613
EXPENSES:
Costs of earned revenues, excluding depreciation and amortization	327,353	301,516	737,472	558,582
General and administrative (including stock-based compensation expense of $3.5 million and $2.5 million, respectively)	38,562	38,827	81,637	67,652
Depreciation and amortization	23,435	20,819	46,987	36,130
Total	389,350	361,162	866,096	662,364
Interest expense, net	(6,800)	(5,748)	(13,686)	(9,946)
Other income, net	595	428	2,607	2,042
INCOME BEFORE INCOME TAXES	(5,037)	2,844	26,063	22,345
PROVISION FOR INCOME TAXES:
Current	(2,755)	1,485	9,572	10,342
Deferred	785	(104)	898	(1,320)
Total	(1,970)	1,381	10,470	9,022
NET INCOME	$ (3,067)	$ 1,463	$ 15,593	$ 13,323
Earnings Per Common Share:
Basic earnings per common share	$ (0.09)	$ 0.04	$ 0.46	$ 0.40
Diluted earnings per common share	$ (0.09)	$ 0.04	$ 0.45	$ 0.40
SHARES USED IN COMPUTING EARNINGS PER COMMON SHARE:
Basic	33,836,099	32,780,667	33,629,884	32,935,305
Diluted	33,836,099	33,514,416	34,767,945	33,607,180