Income Taxes (Details 5)	12 Months Ended
	Dec. 31, 2011
Domestic Country [Member]
Income Tax Contingency [Line Items]
Open Tax Years by Major Tax Jurisdiction	2010 - 2011
Foreign Country [Member]
Income Tax Contingency [Line Items]
Open Tax Years by Major Tax Jurisdiction	2010 - 2011
India Income Tax Authority [Member]
Income Tax Contingency [Line Items]
Open Tax Years by Major Tax Jurisdiction	2002 - 2011