Income Taxes (Income Tax Expense (Benefit)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Current income taxes: U.S. federal	$ 26,204	$ 13,957	$ 14,052
Current income taxes: State and local	4,583	5,118	1,514
Current income taxes: Foreign	13,775	7,190	8,426
Total current income taxes	44,562	26,265	23,992
Deferred income taxes: U.S. federal	31,106	8,994	(8,578)
Deferred income taxes: State and local	4,704	(3,488)	18,562
Deferred income taxes: Foreign	(26,773)	(10,122)	(31,263)
Total deferred income taxes	9,037	(4,616)	(21,279)
Income tax expense (benefit)	$ 53,599	$ 21,649	$ 2,713