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Derivatives And Risk Management (Schedule Of Foreign Currency Forward Hedge Contracts) (Details) In Thousands, unless otherwise specified | Mar. 31, 2012 | Mar. 31, 2012 Euro [Member] USD ($) | Mar. 31, 2012 Euro [Member] EUR (€) | Mar. 31, 2012 British Pound [Member] USD ($) | Mar. 31, 2012 British Pound [Member] GBP (£) | Mar. 31, 2012 Japanese Yen [Member] USD ($) | Mar. 31, 2012 Japanese Yen [Member] JPY (¥) | Mar. 31, 2012 Mexican Peso [Member] USD ($) | Mar. 31, 2012 Mexican Peso [Member] MXN | Mar. 31, 2012 Australian Dollar [Member] USD ($) | Mar. 31, 2012 Australian Dollar [Member] AUD | Mar. 31, 2012 Canadian Dollar [Member] USD ($) | Mar. 31, 2012 Canadian Dollar [Member] CAD
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Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Functional Currency, Amount |  | $ 179,969 | € 132,345 | $ 24,835 | £ 15,691 | $ 30,775 | ¥ 2,525,700 | $ 11,200 | 152,500 | $ 8,248 | 8,310 | $ 17,619 | 17,681
Forecasted purchases to manage fluctuations | 65.00% |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Aggregate notional amount of foreign currency derivatives to purchase a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959 + Details
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