Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Cash flows from operating activities:
Net loss	$ (60,603)	$ (55,734)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	31,679	28,930
Cost of real estate sales	9,241	10,288
Stock-based compensation expense	3,472	4,032
Deferred income taxes, net	(37,583)	(36,387)
Other non-cash income, net	(2,712)	(2,404)
Changes in assets and liabilities:
Restricted cash	(237)	(1,177)
Trade receivables, net	35,223	29,991
Inventories, net	(18,879)	(21,782)
Investments in real estate	(477)	(1,094)
Accounts payable and accrued liabilities	85,627	87,453
Other assets and liabilities, net	(10,174)	(3,781)
Net cash provided by operating activities	34,577	38,335
Cash flows from investing activities:
Capital expenditures	(35,907)	(51,003)
Other investing activities, net	255	(136)
Net cash used in investing activities	(35,652)	(51,139)
Cash flows from financing activities:
Repurchases of common stock	0	(7,869)
Dividends paid	(6,729)	(5,429)
Other financing activities, net	5,704	697
Net cash used in financing activities	(1,025)	(12,601)
Effect of exchange rate changes on cash and cash equivalents	32	0
Net decrease in cash and cash equivalents	(2,068)	(25,405)
Cash and cash equivalents:
Beginning of period	46,053	70,143
End of period	$ 43,985	$ 44,738