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Income Taxes (Income Taxes Paid, Net Of Tax Refunds) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Refunds received for income taxes, net	$ 2,000	$ 6,085	$ 3,516

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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