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Income Taxes (Schedule Of Activity Related To Gross Unrecognized Tax Benefits) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2010
Income Taxes [Abstract]
Balance at December 31, 2009	$ 49,416
Increases related to prior year tax positions	374
Decreases related to prior year tax positions	(9,569)
Increases related to current year tax positions	1,696
Settlements	(605)
Balance at September 30, 2010	$ 41,312

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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 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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