Income Taxes (Schedule of Components of Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Income Taxes [Abstract]
Income tax (benefit)/expense based on income from continuing operations, at estimated tax rates of 31% in 2012 and 2011	$ (2,646)	$ 5,401
Provision for/resolution of tax audits and contingencies	(6,733)	(1,413)
Total income tax (benefit)/expense	$ (9,379)	$ 3,988
Estimated tax rate	31.00%	31.00%