CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jul. 25, 2015	Jul. 26, 2014	Jul. 27, 2013
OPERATING ACTIVITIES:
Net income	$ 84,324	$ 39,978	$ 35,188
Adjustments to reconcile net income to net cash provided by operating activities, net of acquisitions:
Depreciation and amortization	96,044	92,772	85,481
Deferred income tax provision (benefit)	1,244	(6,323)	(2,270)
Stock-based compensation	13,923	12,596	9,902
Bad debt expense, net	465	615	139
Gain on sale of fixed assets	(7,110)	(10,706)	(4,683)
Write-off of deferred financing costs	0	0	321
Amortization of premium on long-term debt	(397)	(369)	(218)
Amortization of debt issuance costs and other	2,040	1,916	1,652
Excess tax benefit from share-based awards	(8,371)	(3,025)	(1,283)
Other	0	0	57
Change in operating assets and liabilities:
Accounts receivable, net	(40,444)	(16,949)	3,625
Costs and estimated earnings in excess of billings, net	(41,021)	(25,356)	(12,338)
Other current assets and inventory	(1,138)	(12,843)	(1,083)
Other assets	(6,875)	(555)	(31)
Income taxes receivable/payable	11,758	6,685	5,994
Accounts payable	7,114	(4,244)	(11,163)
Accrued liabilities, insurance claims, and other liabilities	30,344	9,993	(2,546)
Net cash provided by operating activities	141,900	84,185	106,744
INVESTING ACTIVITIES:
Cash paid for acquisitions, net of cash acquired	(31,909)	(17,088)	(330,291)
Capital expenditures	(102,997)	(89,136)	(64,650)
Proceeds from sale of assets	9,392	15,407	5,827
Changes in restricted cash	(4,000)	0	0
Other investing activities	(538)	(303)	60
Net cash used in investing activities	(130,052)	(91,120)	(389,054)
FINANCING ACTIVITIES:
Proceeds from issuance of 7.125% senior subordinated notes due 2021 (including $3.8 million premium on fiscal 2013 issuance)	0	0	93,825
Proceeds from borrowings on senior credit agreement, including term loan	535,750	502,000	529,500
Principal payments on senior credit agreement, including term loan	(467,563)	(495,813)	(358,625)
Debt issuance costs	(3,854)	0	(6,739)
Repurchases of common stock	(87,146)	(9,999)	(15,203)
Exercise of stock options	8,922	14,568	5,253
Restricted stock tax withholdings	(4,711)	(3,781)	(884)
Excess tax benefit from share-based awards	8,371	3,025	1,283
Net cash (used in) provided by financing activities	(1,000)	(1,000)	(74)
Net cash (used in) provided by financing activities	(11,231)	9,000	248,336
Net increase (decrease) in cash and equivalents	617	2,065	(33,974)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	20,672	18,607	52,581
CASH AND EQUIVALENTS AT END OF PERIOD	21,289	20,672	18,607
Cash paid during the period for:
Interest	25,369	25,291	21,414
Income taxes	39,057	26,738	19,128
Purchases of capital assets included in accounts payable or other accrued liabilities at period end	$ 2,372	$ 2,651	$ 13,639