CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 27, 2013	Jul. 28, 2012	Jul. 30, 2011
OPERATING ACTIVITIES:
Net income	$ 35,188	$ 39,378	$ 16,107
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	85,481	62,693	62,533
Bad debt expense, net	139	186	(23)
Gain on sale of fixed assets	(4,683)	(15,430)	(10,216)
Deferred income tax provision (benefit)	(2,270)	9,874	14,728
Stock-based compensation	9,902	6,782	4,409
Write-off of deferred financing costs	321	0	2,337
Amortization of premium on long-term debt	(218)	0	0
Amortization of debt issuance costs and other	1,652	1,297	1,295
Excess tax benefit from share-based awards	(1,283)	(1,625)	0
Other	57	(105)	87
Change in operating assets and liabilities:
Accounts receivable, net	3,625	(3,421)	(21,665)
Costs and estimated earnings in excess of billings, net	(12,338)	(35,693)	(23,157)
Other current assets and inventory	(1,083)	(6,403)	(5,014)
Other assets	(31)	62	617
Income taxes receivable/payable	5,994	5,747	(5,025)
Accounts payable	(11,163)	2,978	2,580
Accrued liabilities, insurance claims, and other liabilities	(2,546)	(1,195)	4,264
Net cash provided by operating activities	106,744	65,125	43,857
INVESTING ACTIVITIES:
Cash paid for acquisition, net of cash acquired	(330,291)	0	(36,451)
Capital expenditures	(64,650)	(77,612)	(61,457)
Proceeds from sale of assets	5,827	24,783	12,305
Changes in restricted cash	60	926	225
Net cash used in investing activities	(389,054)	(51,903)	(85,378)
FINANCING ACTIVITIES:
Proceeds from issuance of 7.125% senior subordinated notes due 2021 (including $3.8 million premium)	93,825	0	187,500
Proceeds from Term Loan on Senior Credit Agreement	125,000	0	0
Proceeds from borrowings on Senior Credit Agreement	404,500	0	0
Principal payments on Senior Credit Agreement	(358,625)	0	0
Purchase of 8.125% senior subordinated notes due 2015	0	0	(135,350)
Debt issuance costs	(6,739)	0	(5,177)
Repurchases of common stock	(15,203)	(12,960)	(64,548)
Exercise of stock options and other	5,253	6,490	1,321
Restricted stock tax withholdings	(884)	(329)	(197)
Excess tax benefit from share-based awards	1,283	1,625	0
Principal payments on capital lease obligations	(74)	(233)	(582)
Net cash provided by financing activities	248,336	(5,407)	(17,033)
Net (decrease) increase in cash and equivalents	(33,974)	7,815	(58,554)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	52,581	44,766	103,320
CASH AND EQUIVALENTS AT END OF PERIOD	18,607	52,581	44,766
Cash paid during the period for:
Interest	21,414	15,443	17,296
Income taxes	19,128	10,722	3,481
Purchases of capital assets included in accounts payable or other accrued liabilities at period end	$ 13,639	$ 4,593	$ 10,173