Condensed Consolidated Balance Sheets (USD $)	Apr. 30, 2011	Jul. 31, 2010
Current assets:
Cash and cash equivalents	$ 588,941,000	$ 607,594,000
Accounts receivable, net	70,185,000	135,840,000
Inventories, net	81,428,000	73,562,000
Prepaid expenses and other current assets	7,722,000	8,876,000
Deferred tax asset, net	12,867,000	14,947,000
Total current assets	761,143,000	840,819,000
Property, plant and equipment, net	28,177,000	33,727,000
Goodwill	137,354,000	137,354,000
Intangibles with finite lives, net	47,497,000	48,091,000
Deferred financing costs, net	4,169,000	4,675,000
Other assets, net	1,194,000	1,896,000
Total assets	979,534,000	1,066,562,000
Current liabilities:
Accounts payable	17,828,000	77,844,000
Accrued expenses and other current liabilities	43,076,000	53,398,000
Dividends payable	6,521,000	0
Customer advances and deposits	16,416,000	12,780,000
Interest payable	3,031,000	1,531,000
Income taxes payable	3,397,000	8,666,000
Total current liabilities	90,269,000	154,219,000
Convertible senior notes	200,000,000	200,000,000
Other liabilities	6,389,000	2,518,000
Income taxes payable	4,914,000	5,220,000
Deferred tax liability	4,047,000	2,973,000
Total liabilities	305,619,000	364,930,000
Commitments and contingencies
Stockholders' equity:
Preferred stock, par value $.10 per share; shares authorized and unissued 2,000,000	0	0
Common stock, par value $.10 per share; authorized 100,000,000 shares; issued 28,662,144 shares and 28,542,535 shares at April 30, 2011 and July 31, 2010, respectively	2,866,000	2,854,000
Additional paid-in capital	351,984,000	347,514,000
Retained earnings	387,321,000	351,449,000
Stockholders' equity before treasury stock	742,171,000	701,817,000
Less: Treasury stock, at cost (2,576,807 shares and 210,937 shares at April 30, 2011 and July 31, 2010, respectively)	(68,256,000)	(185,000)
Total stockholders' equity	673,915,000	701,632,000
Total liabilities and stockholders' equity	$ 979,534,000	$ 1,066,562,000