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Income Taxes (Details Textual) - USD ($)
$ in Millions
1 Months Ended
Oct. 31, 2011
Mar. 31, 2016
Mar. 31, 2015
Income Tax Contingency [Line Items]      
Notice of assessment of corporate withholding tax including penalties and interest   $ 67.0  
Net benefit for a previously unrecognized position     $ 16.4
Tax Year 2007      
Income Tax Contingency [Line Items]      
Proposed deduction disallowance by tax authorities $ 130.0    
Tax Year 2008      
Income Tax Contingency [Line Items]      
Proposed deduction disallowance by tax authorities 130.0    
Tax Year 2009      
Income Tax Contingency [Line Items]      
Proposed deduction disallowance by tax authorities $ 130.0