|**Valuation And Qualifying Accounts**                        | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
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|**Valuation and Qualifying Accounts [Abstract]**             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Valuation And Qualifying Accounts                            | Allowance for Doubtful Accounts,Price Protection and ReturnsBalance atBeginningof PeriodCharged toRevenue,Costs andExpensesCharged(Credited)to OtherAccounts(a)Deductions(b)Balance atEnd ofPeriodYear Ended March 31, 2016$14026911(261)$159Year Ended March 31, 2015$186361(66)(341)$140Year Ended March 31, 2014$20032137(372)$186(a)Primarily other reclassification adjustments and the translation effect of using the average exchange rate for expense items and the year-end exchange rate for the balance sheet item (allowance account).(b)Primarily the utilization of returns allowance and price protection reserves.
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|Allowance for Doubtful Accounts,Price Protection and Returns | Balance atBeginningof Period                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Year Ended March 31, 2016                                    | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Year Ended March 31, 2015                                    | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Year Ended March 31, 2014                                    | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|(a)                                                          | Primarily other reclassification adjustments and the translation effect of using the average exchange rate for expense items and the year-end exchange rate for the balance sheet item (allowance account).                                                                                                                                                                                                                                                                                                                                                                                                                        
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|(b)                                                          | Primarily the utilization of returns allowance and price protection reserves.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

X- DefinitionThe entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements.
+ ReferencesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12
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