CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Oct. 26, 2013	Oct. 27, 2012
REVENUES:
Contract revenues	$ 512,720	$ 323,286
EXPENSES:
Costs of earned revenues, excluding depreciation and amortization	410,119	257,066
General and administrative (including stock-based compensation expense of $3.5 million and $2.3 million, respectively)	43,075	28,824
Depreciation and amortization	23,552	15,311
Total	476,746	301,201
Interest expense, net	(6,886)	(4,197)
Other income, net	2,012	1,614
INCOME BEFORE INCOME TAXES	31,100	19,502
PROVISION FOR INCOME TAXES:
Current	12,327	8,858
Deferred	113	(1,217)
Total	12,440	7,641
NET INCOME	$ 18,660	$ 11,861
Earnings Per Common Share:
Basic earnings per common share	$ 0.56	$ 0.36
Diluted earnings per common share	$ 0.54	$ 0.35
SHARES USED IN COMPUTING EARNINGS PER COMMON SHARE:
Basic	33,423,678	33,089,959
Diluted	34,638,998	33,721,070