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Interest Income And Interest Expense (Schedule Of Interest Income And Expense Of Continuing Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Jul. 31, 2017 | Jul. 31, 2016
Schedule Of Interest Income And Expense [Line Items] |  |
Other income (expense), net | $ 1,220 | $ 2,641
Mortgage loans and real estate owned, net |  |
Schedule Of Interest Income And Expense [Line Items] |  |
Other income (expense), net | 0 | 1,537
Interest income |  |
Schedule Of Interest Income And Expense [Line Items] |  |
Other income (expense), net | 1,362 | 1,066
Interest and gains on available-for-sale (AFS) securities |  |
Schedule Of Interest Income And Expense [Line Items] |  |
Other income (expense), net | 82 | 31
Foreign currency gains (losses), net |  |
Schedule Of Interest Income And Expense [Line Items] |  |
Other income (expense), net | 131 | (21)
Other, net |  |
Schedule Of Interest Income And Expense [Line Items] |  |
Other income (expense), net | $ (355) | $ 28

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- Definition Schedule Of Interest Income And Expense [Line Items] + References No definition available. + Details
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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