Income Taxes Income Before Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current Fiscal Year End Date	--12-31
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ 135,992	$ 115,413	$ 86,985
Income (Loss) from Continuing Operations before Income Taxes, Foreign	152,468	123,429	122,163
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 288,460	$ 238,842	$ 209,148