Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013	Jul. 31, 2012
Current assets:
Cash and cash equivalents	$ 113,033	$ 187,011
Accounts receivable, net of allowance for doubtful accounts of $598 and $344 as of July 31, 2013 and July 31, 2012, respectively	113,150	96,117
Inventory	116,280	108,944
Refundable and deferred income taxes	7,803	9,786
Other current assets	10,147	6,937
Total current assets	360,413	408,795
Property, plant, and equipment, net	110,983	96,769
Intangible assets, net	55,525	34,340
Goodwill	50,073	1,849
Deferred income taxes	5,439	10,749
Other assets	5,351	5,494
Total Assets	587,784	557,996
Current liabilities:
Accounts payable	32,138	38,200
Accrued employee compensation and benefits	22,264	25,153
Accrued warranty	6,501	5,634
Accrued restructuring charges	2,848	277
Deferred revenue	9,218	11,551
Customer deposits	3,256	2,772
Accrued income taxes	4,091	5,670
Other current liabilities	10,578	10,682
Total current liabilities	90,894	99,939
Long-term liabilities:
Accrued income taxes	5,031	4,675
Other long-term liabilities	5,463	7,063
Total long-term liabilities	10,494	11,738
Commitments and guarantees (Note 12)
Stockholders' equity:
Common stock, $0.05 par value; 30,000,000 shares authorized and 12,235,416 shares issued and outstanding as of July 31, 2013; 30,000,000 shares authorized and 12,162,724 shares issued and outstanding as of July 31, 2012	612	608
Capital in excess of par value	114,381	100,222
Retained earnings	362,255	343,186
Accumulated other comprehensive income	9,148	2,303
Total stockholders' equity	486,396	446,319
Total Liabilities and Stockholders' Equity	$ 587,784	$ 557,996