Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 31, 2014	Jul. 31, 2013
Current assets:
Cash and cash equivalents	$ 111,027	$ 113,033
Accounts receivable, net of allowance for doubtful accounts of $728 and $598 as of January 31, 2014 and July 31, 2013, respectively	94,115	113,150
Inventory	112,936	116,280
Refundable and deferred income taxes	15,374	7,803
Other current assets	9,864	10,147
Total current assets	343,316	360,413
Property, plant, and equipment, net	111,800	110,983
Intangible assets, net	61,343	55,525
Goodwill	56,977	50,073
Deferred income taxes	7,692	5,439
Other assets	5,792	5,351
Total assets	586,920	587,784
Current liabilities:
Accounts payable	32,210	32,138
Accrued employee compensation and benefits	14,779	22,264
Accrued warranty	6,110	6,501
Accrued restructuring charges	1,519	2,848
Deferred revenue	9,208	9,218
Accrued income taxes		4,091
Accrued expenses, other	3,873	5,293
Other current liabilities	7,541	8,541
Total current liabilities	75,240	90,894
Long-term liabilities:
Accrued income taxes	4,084	5,031
Other long-term liabilities	7,261	5,463
Total long-term liabilities	11,345	10,494
Guarantees and commitments (Note 18)
Stockholders' equity:
Common stock, $0.05 par value; 30,000,000 shares authorized and 12,405,214 shares issued and outstanding as of January 31, 2014; 30,000,000 shares authorized and 12,235,416 shares issued and outstanding as of July 31, 2013	620	612
Capital in excess of par value	120,644	114,381
Retained earnings	369,016	362,255
Accumulated other comprehensive income	10,055	9,148
Total stockholders' equity	500,335	486,396
Total liabilities and stockholders' equity	$ 586,920	$ 587,784