CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Apr. 29, 2017	Apr. 23, 2016
OPERATING ACTIVITIES:
Net income	$ 113,509	$ 79,380
Adjustments to reconcile net income to net cash provided by operating activities, net of acquisitions:
Depreciation and amortization	107,662	88,930
Deferred income tax provision	5,917	27,969
Stock-based compensation	15,930	12,600
Bad debt expense, net	239	1,005
Gain on sale of fixed assets	(8,220)	(6,213)
Write-off of deferred financing fees and premium on long-term debt	0	2,017
Amortization of debt discount	13,111	10,119
Amortization of debt issuance costs and other	2,469	1,981
Excess tax benefit from share-based awards	(8,047)	(11,384)
Change in operating assets and liabilities:
Accounts receivable, net	(12,056)	(29,667)
Costs and estimated earnings in excess of billings, net	(75,005)	(77,180)
Other current assets and inventory	(23,339)	(11,000)
Other assets	1,083	(2,867)
Income taxes receivable/payable	(12,696)	(10,622)
Accounts payable	(1,356)	6,827
Accrued liabilities, insurance claims, and other liabilities	(12,688)	(2,922)
Net cash provided by operating activities	106,513	78,973
INVESTING ACTIVITIES:
Capital expenditures	(135,186)	(138,721)
Proceeds from sale of assets	10,087	6,432
Cash paid for acquisitions, net of cash acquired	(26,427)	(48,804)
Proceeds from acquisition working capital adjustment	1,825	0
Changes in restricted cash and other	265	(479)
Net cash used in investing activities	(149,436)	(181,572)
FINANCING ACTIVITIES:
Proceeds from borrowings on senior credit agreement, including term loans	640,000	773,000
Principal payments on senior credit agreement, including term loans	(547,563)	(654,250)
Repurchases of common stock	(62,909)	(169,997)
Proceeds from issuance of 0.75% convertible senior notes due 2021	0	485,000
Proceeds from sale of warrants	0	74,690
Purchase of convertible note hedge	0	(115,818)
Principal payments for satisfaction and discharge of 7.125% senior subordinated notes	0	(277,500)
Debt issuance costs	(70)	(15,542)
Exercise of stock options	1,434	1,816
Restricted stock tax withholdings	(10,446)	(12,146)
Excess tax benefit from share-based awards	8,047	11,384
Net cash provided by financing activities	28,493	100,637
Net decrease in cash and equivalents	(14,430)	(1,962)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	33,787	21,289
CASH AND EQUIVALENTS AT END OF PERIOD	19,357	19,327
SUPPLEMENTAL DISCLOSURE OF OTHER CASH FLOW ACTIVITIES AND NON-CASH INVESTING AND FINANCING ACTIVITIES:
Cash paid for interest	13,015	12,765
Cash paid for taxes, net	74,501	31,205
Purchases of capital assets included in accounts payable or other accrued liabilities at period end	$ 9,579	$ 7,120