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Commitments and Contingencies (Narrative) (Details) - USD ($)
$ in Millions
6 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Jun. 11, 2010
Commitments and Contingencies Disclosure [Abstract]      
Loss Contingency, Damages Sought, Value $ 470.0    
Amount of claims filed in Anderson bankruptcy proceedings     $ 5.6
Approximate amount of claims Anderson could assert against its insiders   $ 340.0