Condensed Consolidated Balance Sheets (USD $)	Jan. 31, 2013	Jul. 31, 2012
Current assets:
Cash and cash equivalents	$ 352,927,000	$ 367,894,000
Accounts receivable, net	42,236,000	56,242,000
Inventories, net	70,156,000	72,361,000
Prepaid expenses and other current assets	11,541,000	8,196,000
Deferred tax asset, net	10,877,000	12,183,000
Total current assets	487,737,000	516,876,000
Property, plant and equipment, net	21,238,000	22,832,000
Goodwill	137,354,000	137,354,000
Intangibles with finite lives, net	35,669,000	38,833,000
Deferred tax asset, net, non-current	0	438,000
Deferred financing costs, net	1,806,000	2,487,000
Other assets, net	943,000	958,000
Total assets	684,747,000	719,778,000
Current liabilities:
Accounts payable	14,068,000	20,967,000
Accrued expenses and other current liabilities	30,818,000	40,870,000
Dividends payable	0	4,773,000
Customer advances and deposits	10,530,000	14,516,000
Interest payable	1,529,000	1,529,000
Total current liabilities	56,945,000	82,655,000
Convertible senior notes	200,000,000	200,000,000
Other liabilities	3,811,000	5,098,000
Income taxes payable	3,074,000	2,624,000
Deferred tax liability, net	2,240,000	0
Total liabilities	266,070,000	290,377,000
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 28,978,701 shares and 28,931,679 shares at January 31, 2013 and July 31, 2012, respectively	2,898,000	2,893,000
Additional paid-in capital	360,968,000	361,458,000
Retained earnings	404,465,000	404,227,000
Stockholders' equity before treasury stock	768,331,000	768,578,000
Less: Treasury stock, at cost (11,961,857 shares and 11,564,059 shares at January 31, 2013 and July 31, 2012 respectively)	(349,654,000)	(339,177,000)
Total stockholders' equity	418,677,000	429,401,000
Total liabilities and stockholders' equity	$ 684,747,000	$ 719,778,000