CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jan. 28, 2012	Jul. 30, 2011
CURRENT ASSETS:
Cash and equivalents	$ 86,195	$ 44,766
Accounts receivable, net	102,698	138,552
Costs and estimated earnings in excess of billings	83,493	90,855
Inventories	30,263	20,558
Deferred tax assets, net	15,393	15,957
Income taxes receivable	4,437	8,685
Other current assets	12,641	10,938
Total current assets	335,120	330,311
PROPERTY AND EQUIPMENT, NET	156,315	149,439
GOODWILL	174,849	174,849
INTANGIBLE ASSETS, NET	52,972	56,279
OTHER	12,846	13,877
TOTAL NON-CURRENT ASSETS	396,982	394,444
TOTAL	732,102	724,755
CURRENT LIABILITIES:
Accounts payable	31,602	39,399
Current portion of debt	167	232
Billings in excess of costs and estimated earnings	1,307	749
Accrued insurance claims	24,999	26,092
Other accrued liabilities	41,355	52,041
Total current liabilities	99,430	118,513
LONG-TERM DEBT	187,500	187,574
ACCRUED INSURANCE CLAIMS	22,642	23,344
DEFERRED TAX LIABILITIES, NET NON-CURRENT	42,883	39,923
OTHER LIABILITIES	3,752	3,550
Total liabilities	356,207	372,904
STOCKHOLDERS' EQUITY:
Preferred stock, par value $1.00 per share: 1,000,000 shares authorized: no shares issued and outstanding	0	0
Common stock, par value $0.33 1/3 per share: 150,000,000 shares authorized: 33,951,216 and 33,487,640 issued and outstanding, respectively	11,317	11,162
Additional paid-in capital	120,573	112,991
Accumulated other comprehensive income	154	299
Retained earnings	243,851	227,399
Total stockholders' equity	375,895	351,851
TOTAL	$ 732,102	$ 724,755