CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Apr. 28, 2012	Jul. 30, 2011
CURRENT ASSETS:
Cash and equivalents	$ 66,710	$ 44,766
Accounts receivable, net	121,638	138,552
Costs and estimated earnings in excess of billings	105,874	90,855
Inventories	29,795	20,558
Deferred tax assets, net	15,653	15,957
Income taxes receivable	867	8,685
Other current assets	12,278	10,938
Total current assets	352,815	330,311
PROPERTY AND EQUIPMENT, NET	155,036	149,439
GOODWILL	174,849	174,849
INTANGIBLE ASSETS, NET	51,364	56,279
OTHER	12,981	13,877
TOTAL NON-CURRENT ASSETS	394,230	394,444
TOTAL	747,045	724,755
CURRENT LIABILITIES:
Accounts payable	33,287	39,399
Current portion of debt	121	232
Billings in excess of costs and estimated earnings	979	749
Accrued insurance claims	25,123	26,092
Other accrued liabilities	51,294	52,041
Total current liabilities	110,804	118,513
LONG-TERM DEBT	187,500	187,574
ACCRUED INSURANCE CLAIMS	22,546	23,344
DEFERRED TAX LIABILITIES, NET NON-CURRENT	44,011	39,923
OTHER LIABILITIES	3,798	3,550
Total liabilities	368,659	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: 33,593,696 and 33,487,640 issued and outstanding, respectively	11,198	11,162
Additional paid-in capital	113,449	112,991
Accumulated other comprehensive income	243	299
Retained earnings	253,496	227,399
Total stockholders' equity	378,386	351,851
TOTAL	$ 747,045	$ 724,755