Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Total Gross Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Balance at January 1	$ 3,617	$ 1,605
Increase related to prior year tax positions	578	1,666
Decrease related to prior year tax positions	(65)	(111)
Increase related to current year tax positions	523	457
Decrease related to statute of limitation lapses	0	0
Settlements	0	0
Balance at December 31	$ 4,653	$ 3,617

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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 increases 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 lapses of the applicable statutes of limitations.

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