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Income Taxes (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Income Taxes [Abstract]
Material changes to the total amount of unrecognized tax benefits	$ 0	$ 0
Accrued interest expense	72,000	207,000
Gross liability for unrecognized tax benefits	7,800,000	7,800,000
Unrecognized tax benefits that would impact our effective tax rate	5,000,000	5,000,000
Interest included in total liability	3,200,000	3,200,000
Significant increases or decreases for uncertain tax positions	$ 0	$ 0

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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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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This element represents the amount of interest expense accrued as of the date of the statement of financial position for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity.

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The net amount of all increases and decreases in unrecognized tax benefits for the period.

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