CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Jul. 28, 2012
Net Income	$ 125,482	$ 107,854	$ 91,342
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	48,758	42,398	39,560
Deferred income tax expense (benefit)	881	6,780	(6,115)
Share-based compensation	14,608	15,104	11,372
Excess tax benefit from share-based payment arrangements	(2,601)	(1,952)	(2,804)
Loss (gain) on disposals of property and equipment	647	(513)	(313)
Gain associated with acquisition of land	(4,840)	0	0
Impairment of indefinite lived intangibles	0	1,629	0
Provision for doubtful accounts	3,152	4,227	3,532
Non-cash interest expense	2,012	651	0
Changes in assets and liabilities, net of acquired companies:
Accounts receivable	(70,717)	(37,295)	(51,193)
Inventories	(97,819)	(123,904)	(62,822)
Prepaid expenses and other assets	2,024	(17,702)	15,050
Accounts payable	28,205	34,974	16,095
Accrued expenses	12,627	12,080	12,540
Net cash provided by operating activities	62,419	44,331	66,244
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(147,303)	(66,554)	(31,492)
Purchases of acquired businesses, net of cash acquired	(211,574)	(8,135)	(3,297)
Proceeds from disposals of property and equipment	6,084	2,368	332
Net cash used in investing activities	(352,793)	(72,321)	(34,457)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from borrowings under revolving credit line	853,884	610,046	1,021,517
Repayments of borrowings under revolving credit line	(568,338)	(594,107)	(1,021,517)
Repayments of long-term debt	(1,226)	(353)	(47,447)
Increase in bank overdraft	11,501	6,347	8,673
Proceeds from exercise of stock options	2,215	1,942	7,571
Payment of employee restricted stock tax withholdings	(3,757)	(3,484)	(1,526)
Excess tax benefit from share-based payment arrangements	2,601	1,952	2,804
Capitalized debt issuance costs	(1,523)	0	(2,905)
Net cash provided by (used in) financing activities	295,357	22,343	(32,830)
Effect of exchange rate changes on cash and cash equivalents	22	636	298
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	5,005	(5,011)	(745)
Cash and cash equivalents at beginning of period	11,111	16,122	16,867
Cash and cash equivalents at end of period	16,116	11,111	16,122
Supplemental disclosures of cash flow information:
Non-cash financing activity	0	32,826	0
Non-cash investing activity	7,104	32,826	0
Cash paid for interest	6,599	5,246	4,734
Cash paid for federal and state income taxes, net of refunds	$ 77,091	$ 64,367	$ 52,666