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Comprehensive (Loss) Income (Tables) | 3 Months Ended
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Jul. 31, 2013
Components Of Accumulated Other Comprehensive Income | The components of accumulated other comprehensive loss were as follows:
|  | July 31, 2013 |  |  | April 30, 2013 |
|  | (in thousands) |
Foreign currency translation adjustments |  | $ | 14,533 |  |  | $ | 17,559 |
Defined benefit pension adjustments, net of taxes |  |  | (20,236 | ) |  |  | (20,236 | )
Unrealized (losses) gains on marketable securities, net of taxes |  |  | (11 | ) |  |  | 46 |
Accumulated other comprehensive loss, net |  | $ | (5,714 | ) |  | $ | (2,631 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 + Details
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