Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012	Oct. 31, 2011
Deferred tax assets:
Accounts receivable, principally due to allowances for doubtful accounts	$ 1,073	$ 1,017
Inventories	4,916	4,325
Litigation settlements	199	183
Accrued liabilities, reserves and compensation accruals	41,760	31,856
Restricted stock	19,395	19,341
Net operating loss carryforwards	3,563	8,159
Plant and equipment	3,999	2,778
Research and experimental expenses - Section 59(e)	6,815	8,311
Tax credit carryforwards	8,700	7,629
Total gross deferred tax assets	90,420	83,599
Less valuation allowance	(1,107)	0
Deferred tax assets	89,313	83,599
Deferred tax liabilities:
Tax deductible goodwill	(19,038)	(16,804)
Transaction cost	(1,144)	(1,144)
Foreign deferred tax liabilities	(19,365)	(11,005)
Other intangible assets	(24,548)	(15,610)
Bonus adjustments under new accounting method	(2,601)	(3,901)
Total gross deferred tax liabilities	(66,696)	(48,464)
Net deferred tax assets	$ 22,617	$ 35,135