CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Cash Flows From Operating Activities:
Net earnings	$ 32,302	$ 17,996
Adjustments to reconcile net earnings to net cash (used in) provided by operating activities:
Non-cash interest	2,157	2,156
Depreciation and amortization	22,325	25,165
Deferred taxes	(559)	491
Loss on disposition of property and equipment	1,399	935
Impairment of property and equipment	488	851
Stock-based compensation	3,570	2,466
Changes in operating assets and liabilities:
Merchandise inventories	(86,640)	(87,575)
Other current assets	1,730	(2,385)
Other assets	335	1,648
Accounts payable and accrued liabilities	20,341	55,744
Deferred revenue	(5,553)	(10,194)
Other liabilities	(2,533)	(4,375)
Net cash (used in) provided by operating activities	(10,638)	2,923
Cash Flows From Investing Activities:
Payments for property and equipment	(28,212)	(16,459)
Purchase of available-for-sale investments	(7,006)	(1,674)
Proceeds from sales of available-for-sale investments	6,330	3,449
Net cash used in investing activities	(28,888)	(14,684)
Cash Flows From Financing Activities:
Borrowings under revolving credit agreement	3,829,600	3,950,500
Payments on revolving credit agreement	(3,784,800)	(3,936,900)
Proceeds from exercise of stock options	884	81
Payments on capital lease obligations	(821)	(751)
Net cash provided by financing activities	44,863	12,930
Effect of exchange rate changes on cash	(502)	(79)
Net change in cash and cash equivalents	4,835	1,090
Cash and cash equivalents at beginning of period	17,060	24,603
Cash and cash equivalents at end of period	$ 21,895	$ 25,693