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           Goodwill (Tables) 
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        12 Months Ended | ||||||||||||||||||||||||||||||||||||
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           Mar. 31, 2015 
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| Goodwill And Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||
| Reconciliation of Changes to Carrying Amount of Goodwill | 
 A reconciliation of the changes to the Company’s carrying amount of goodwill for the periods or as of the dates indicated: 
 
 
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- Details 
          
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- Definition 
          Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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