Income Taxes Income Tax by Jurisdiction (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ 11,920	$ 49,060	$ 29,980
Income (Loss) from Continuing Operations before Income Taxes, Foreign	30,340	30,680	26,450
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	42,260	79,740	56,430
Current Income Tax Expense (Benefit)
Current Federal Tax Expense (Benefit)	8,250	4,500	930
Current State and Local Tax Expense (Benefit)	1,860	2,490	70
Current Foreign Tax Expense (Benefit)	4,190	9,890	8,800
Current Income Tax Expense (Benefit)	14,300	16,880	9,800
Deferred Income Tax Expense (Benefit)
Deferred Federal Income Tax Expense (Benefit)	(6,200)	10,390	9,930
Deferred State and Local Income Tax Expense (Benefit)	(750)	830	(1,310)
Deferred Foreign Income Tax Expense (Benefit)	(1,380)	830	(920)
Deferred Income Tax Expense (Benefit)	(8,330)	12,050	7,700
Income Tax Expense (Benefit), Continuing Operations	$ 5,970	$ 28,930	$ 17,500