CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jan. 31, 2012	Jul. 31, 2011
Current assets:
Cash and cash equivalents	$ 174,306	$ 169,656
Accounts receivable, net of allowance for doubtful accounts of $722 and $599 as of January 31, 2012 and July 31, 2011, respectively	77,964	88,558
Inventories	103,768	105,483
Refundable and deferred income taxes	6,565	9,677
Other current assets	7,550	9,839
Total current assets	370,153	383,213
Property, plant, and equipment, net	92,854	83,157
Goodwill and intangible assets, net	37,720	39,252
Other assets	6,944	7,711
Deferred income tax assets	8,877	8,219
Total Assets	516,548	521,552
Current liabilities:
Accounts payable	33,149	37,478
Accrued liabilities	32,437	41,438
Advance payments and deferred revenue	10,384	9,249
Accrued income taxes	763	661
Total current liabilities	76,733	88,826
Long-term liabilities:
Accrued income taxes	5,270	5,322
Other long-term liabilities	2,987	3,932
Total long-term liabilities	8,257	9,254
Commitments and guarantees (Note 15)
Stockholders' equity:
Common stock, $0.05 par value	613	627
Capital in excess of par value	91,286	85,407
Retained earnings	333,229	325,941
Accumulated other comprehensive income	6,430	11,497
Total stockholders' equity	431,558	423,472
Total Liabilities and Stockholders' Equity	$ 516,548	$ 521,552