Inventories (Details) (USD $) In Thousands	9 Months Ended
Jul. 31, 2011	Jul. 31, 2010	Oct. 31, 2010
Inventories
Raw materials	$ 41,970		$ 30,569
Work-in-process	12,271		6,993
Finished goods	154,161		177,994
Deferred cost of goods sold	66,758		76,830
Inventories before provision	275,160		292,386
Provision for excess and obsolescence	(31,333)		(30,767)
Total inventories	243,827		261,619
Inventories (Textuals) [Abstract]
Provision for excess and obsolescence	$ 11,461	$ 10,749

Inventories textuals.

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Inventory deferred cost of goods sold.

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Carrying amount as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).

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Carrying amount as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Also includes purchased parts that will be used as components of a finished product.

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The amount of the valuation account as of the balance sheet date which reduces the carrying amount of inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage. May also provide for estimated product returns or price concessions pertaining to product cost.

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Carrying amount as of the balance sheet date of merchandise or goods which are partially completed, are generally comprised of raw materials, labor and factory overhead costs, and which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.

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