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Income Taxes	9 Months Ended
	Sep. 30, 2011
Income Taxes [Abstract]
Income Taxes	20. Income Taxes      During the nine months ended September 30, 2011, the Company had a reduction in its liabilities for uncertain tax positions and a reduction in its income tax expense of approximately $3,637 due to settlements and closures of various tax years. In addition, the Company reclassified a portion of its deferred tax liability to liability for uncertain tax positions due to the reassessment of a prior period tax position. During the nine months ended September 30, 2010 the Company had a reduction in its liabilities for uncertain tax positions of approximately $14,230 due to settlements and closures of various tax years. These settlements and closures also resulted in a reduction in income tax expense of approximately $8,655 for the nine months ended September 30, 2010.

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The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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