v3.5.0.1
Summary of Significant Accounting Policies (Property and Equipment) (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Leasehold Improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 1 year  
Leasehold Improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Software    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Capitalized costs, net $ 5.8 $ 14.3