Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Cash flows from operating activities:
Net income	$ 36,038	$ 29,376
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	6,970	6,697
Amortization of intangibles	5,624	4,564
Impairment of trademarks		2,036
Deferred income tax provision	1,221	2,668
Loss on disposition of property, plant and equipment	52	71
Stock-based compensation	323	1,692
Excess tax benefits from stock-based awards	(101)	(496)
Gain on involuntary conversion of assets		(2,117)
Changes in assets and liabilities (excluding acquisition):
Accounts receivable	(5,197)	7,462
Inventories	(7,727)	(44,927)
Notes receivable	1,062	1,000
Prepaid expenses and other	(5,080)	(8,800)
Accounts payable	12,115	(4,851)
Accrued liabilities	(10,912)	(17,928)
Other liabilities	1,627	2,334
Net cash provided by (used in) operating activities	36,015	(21,219)
Cash flows from investing activities:
Purchases of property, plant and equipment	(3,489)	(25,920)
Proceeds from dispositions of property, plant and equipment	11	682
Proceeds from notes receivables	500
Proceeds from disposition of investments	400	2,600
Insurance proceeds from involuntary conversion of assets		2,496
Acquisition of operating subsidiary	(170)	(99,562)
Other	600
Net cash used in investing activities	(2,148)	(119,704)
Cash flows from financing activities:
Cash dividends	(16,454)	(11,160)
Purchase of treasury stock	(77,000)
Excess tax benefits from stock-based awards	101	496
Proceeds from issuance of common stock	257	449
Net cash used in financing activities	(93,096)	(10,215)
Net decrease in cash and equivalents	(59,229)	(151,138)
Cash and cash equivalents, beginning of period	215,435	247,751
Cash and cash equivalents, end of period	156,206	96,613
Supplemental cash flow information:
Income taxes paid	32,638	35,888
Interest paid	270	107
Non-cash transactions:
Capital expenditures in accounts payable	177	205
Common stock issued in business acquisition		$ 90,531