Income Taxes (Components of income tax expense and income before taxes, by jurisdiction) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Geographic sources of income (loss) before income taxes
United States	$ (36,829)	$ 17,062	$ (8,097)
Foreign	160,816	37,049	101,231
Total income before income taxes	123,987	54,111	93,134
Components of the provision (benefit) for income taxes
Current federal tax expense	0	0	0
Current state tax (benefit) expense	0	(75)	377
Current foreign tax expense	30,902	10,998	8,986
Current income tax expense	30,902	10,923	9,363
Deferred federal tax expense	(8,556)	1,859	2,356
Deferred state tax expense	9	266	337
Deferred foreign tax expense (benefit)	291	3,953	(4,932)
Deferred income tax expense (benefit)	(8,256)	6,078	(2,239)
Income tax expense	$ 22,646	$ 17,001	$ 7,124