Income Taxes (Details)	3 Months Ended					3 Months Ended						3 Months Ended						3 Months Ended		3 Months Ended
	Mar. 31, 2012 USD ($)	Mar. 31, 2011 USD ($)	Mar. 31, 2012 EUR (€)	Mar. 31, 2012 Other Liabilities [Member] USD ($)	Mar. 31, 2012 Other Current Liabilities [Member] USD ($)	Mar. 31, 2012 2002-2003 [Member] USD ($)	Mar. 31, 2012 2002-2003 [Member] EUR (€)	Mar. 31, 2012 2004-2006 [Member] USD ($)	Mar. 31, 2012 2004-2006 [Member] EUR (€)	Mar. 31, 2012 2004-2006 [Member] Bank Guarantees [Member] USD ($)	Mar. 31, 2012 2004-2006 [Member] Bank Guarantees [Member] EUR (€)	Mar. 31, 2012 2007-2010 [Member]	Mar. 31, 2012 1995-2001 [Member] USD ($)	Mar. 31, 2012 1995-2001 [Member] EUR (€)	Mar. 31, 2012 1995-2001 [Member] Bank Guarantees [Member] USD ($)	Mar. 31, 2012 1995-2001 [Member] Bank Guarantees [Member] EUR (€)	Mar. 31, 2012 Spanish Income Tax [Member] USD ($)	Mar. 31, 2012 Foreign Subsidiaries [Member] USD ($)	Mar. 31, 2012 Spanish Tax Withholding [Member] USD ($)	Jun. 30, 2011 Scenario, Forecast [Member] USD ($)
Income Taxes [Line Items]
Unrecognized tax benefits that would impact effective tax rate				$ 65,200,000	$ 1,600,000
Income tax penalties and interest expense	200,000
Accrued interest and penalties				12,700,000	400,000
Income tax examination, years under examination						2002-2003	2002-2003	2004-2006	2004-2006			2007-2010	1995-2001	1995-2001
Number of dividend withholding tax controversies	4
Assessment imposed	112,900,000		84,800,000			29,700,000	22,300,000	83,200,000	62,500,000				23,900,000	17,900,000
Bank guarantees needed to be posted to proceed with tax appeals										109,800,000	82,500,000				22,600,000	17,000,000
Provision for uncertain tax positions	79,900,000																51,400,000	51,400,000	7,500,000
Effective tax rate	26.50%	27.30%
Tax expense due to the recognition of out-of-period tax adjustments													9,400,000	10,900,000
Deferred income taxes	(16,313,000)	17,915,000																(10,600,000)
Additional income tax expenses, before tax																				3,300,000
Additional income tax expenses, after-tax																				2,900,000
Uncertain tax positions	$ 7,500,000