CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jan. 26, 2013	Jan. 28, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 44,156	$ 37,168
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	20,944	19,190
Share-based compensation	7,889	6,433
Gain on disposals of property and equipment	(20)	(306)
Excess tax benefits from share-based payment arrangements	(30)	(441)
Impairment of intangible asset	1,629
Unrealized loss on foreign exchange	(63)
Provision for doubtful accounts	1,497	1,832
Changes in assets and liabilities, net of acquired businesses:
Accounts receivable	(51,057)	(67,522)
Inventories	(94,621)	(79,545)
Prepaid expenses and other assets	(11,762)	3,278
Accounts payable	32,140	14,203
Accrued expenses and other liabilities	714	7,905
Net cash used in operating activities	(48,584)	(57,805)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(20,026)	(12,922)
Purchases of acquired businesses, net of cash acquired	(9,266)	(2,450)
Proceeds from disposals of property and equipment	2,342	325
Net cash used in investing activities	(26,950)	(15,047)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of long-term debt	(400)	(2,522)
Proceeds from borrowings under revolving credit line	361,906	618,897
Repayments of borrowings under revolving credit line	(302,808)	(543,897)
Increase in bank overdraft	10,504	8,851
Proceeds from exercise of stock options	1,455	2,508
Payment of employee restricted stock tax withholdings	(3,335)	(1,392)
Excess tax benefits from share-based payment arrangements	30	441
Capitalized debt issuance costs	(12)
Net cash provided by financing activities	67,340	82,886
EFFECT OF EXCHANGE RATE CHANGES ON CASH	157	(165)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(8,037)	9,869
Cash and cash equivalents at beginning of period	16,122	16,867
Cash and cash equivalents at end of period	8,085	26,736
Supplemental disclosures of cash flow information:
Interest paid, net of amounts capitalized	2,195	2,423
Income taxes paid, net of refunds	$ 32,315	$ 18,023