Income Taxes (Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
U.S income	$ (20,521)	$ 37,953	$ 10,108
Foreign income	18,216	7,704	8,047
Income (loss) before income taxes	$ (2,305)	$ 45,657	$ 18,155