Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 2,026	$ 4,253
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	2,000,000us-gaap_PreferredStockSharesAuthorized	2,000,000us-gaap_PreferredStockSharesAuthorized
Preferred Stock, shares outstanding	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	400,000,000us-gaap_CommonStockSharesAuthorized	400,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, shares outstanding	155,965,000us-gaap_CommonStockSharesOutstanding	154,169,000us-gaap_CommonStockSharesOutstanding
Treasury stock, shares	1,299,000us-gaap_TreasuryStockShares	3,095,000us-gaap_TreasuryStockShares

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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