Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2007
Income Taxes [Abstract]
Nondeductible executive compensation	$ 12,655,000	$ 55,000	$ 30,000
Liability for unrecognized tax benefits			16,800,000	16,000,000
Reduced tax expense relating to liability		16,800,000
Net operating losses to carryforward related to prior acquisitions	373,700,000
Valuation allowance	$ 76,600,000

Net operating losses to carryforward related to prior acquisitions

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- Definition

The provision for income taxes reflects the estimated impact from new limitations on the deductibility of annual compensation in excess of $500,000 per employee as mandated by the Health Insurance Reform Legislation

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- Definition

Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

+ References

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- Definition

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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-Publisher FASB

-Name FASB Interpretation (FIN)

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-Glossary Unrecognized Tax Benefit

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The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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-Glossary Valuation Allowance

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