Income Taxes (Summary Of Reconciliation Of The Beginning And Ending Balance Of Gross Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Oct. 31, 2011	Oct. 31, 2010
Income Taxes [Abstract]
Beginning balance	$ 213,923	$ 253,861
Increases in unrecognized tax benefits related to prior year tax positions	4,188	9,243
Decreases in unrecognized tax benefits related to prior year tax positions	(44,061)	(78,464)
Increases in unrecognized tax benefits related to current year tax positions	19,922	38,505
Decreases in unrecognized tax benefits related to settlements with taxing authorities	(1,258)	(14,962)
Reductions in unrecognized tax benefits due to lapse of applicable statute of limitations	(15,200)	(12,686)
Increases in unrecognized tax benefits acquired	350	15,966
Changes in unrecognized tax benefits due to foreign currency translation	29	2,460
Balance as of October 31	$ 177,893	$ 213,923

Unrecognized tax benefits acquisitions acquired

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Unrecognized tax benefits, period increase decrease, due to foreign currency translation

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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