CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 25, 2014	Oct. 26, 2013
OPERATING ACTIVITIES:
Net income	$ 20,807	$ 18,660
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	22,930	23,552
Bad debt expense, net	83	186
Gain on sale of fixed assets	(1,523)	(1,865)
Deferred income tax provision (benefit)	(3,465)	113
Stock-based compensation	3,890	3,506
Amortization of premium on long-term debt	(97)	(91)
Amortization of debt issuance costs and other	494	465
Excess tax benefit from share-based awards	(210)	(656)
Change in operating assets and liabilities:
Accounts receivable, net	(22,016)	(52,397)
Costs and estimated earnings in excess of billings, net	(26,237)	(17,202)
Other current assets and inventory	(1,608)	(8,740)
Other assets	(159)	(430)
Income taxes receivable/payable	10,233	8,101
Accounts payable	1,151	871
Accrued liabilities, insurance claims, and other liabilities	6,632	7,234
Net cash provided by operating activities	10,905	(18,693)
INVESTING ACTIVITIES:
Cash paid for acquisition, net of cash acquired	(8,371)	0
Capital expenditures	(18,028)	(30,288)
Proceeds from sale of assets	1,698	2,465
Changes in restricted cash	(541)	(305)
Net cash used in investing activities	(25,242)	(28,128)
FINANCING ACTIVITIES:
Proceeds from borrowings on Senior Credit Agreement	132,000	164,000
Principal payments on Senior Credit Agreement	(122,344)	(131,563)
Exercise of stock options and other	567	10,124
Restricted stock tax withholdings	(309)	(609)
Excess tax benefit from share-based awards	210	656
Net cash provided by financing activities	10,124	42,608
Net (decrease) increase in cash and equivalents	(4,213)	(4,213)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	20,672	18,607
CASH AND EQUIVALENTS AT END OF PERIOD	16,459	14,394
Cash paid during the period for:
Interest	1,369	1,517
Income taxes	6,796	4,311
Purchases of capital assets included in accounts payable or other accrued liabilities at period end	$ 3,924	$ 3,384