Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits, Excluding Interest And Penalties) (Details) (USD $)	3 Months Ended	12 Months Ended
Sep. 30, 2009	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Unrecognized Benefit Beginning		$ 98	$ 188
Decreases from Prior Period Tax Positions
Increases from Current Period Tax Positions
Decreases Related to Settlements of Tax Positions	5,700,000
Decreases Due to Lapse of Statute of Limitations		(98)	(90)
Unrecognized Benefit Ending			$ 98

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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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