Interest Income And Interest Expense (Schedule Of Interest Income And Expense Of Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Schedule Of Interest Income And Expense [Line Items]
Other Nonoperating Income	$ 2,968	$ 433
Interest expense on borrowings	(21,466)	(8,575)
Other income, net	(327)	(4,985)
Mortgage Loans, Net
Schedule Of Interest Income And Expense [Line Items]
Other Nonoperating Income	1,537	0
AFS Securities
Schedule Of Interest Income And Expense [Line Items]
Other Nonoperating Income	31	0
Other
Schedule Of Interest Income And Expense [Line Items]
Other Nonoperating Income	1,400	433
Borrowings
Schedule Of Interest Income And Expense [Line Items]
Interest expense on borrowings	(21)	(4,599)
Deposits
Schedule Of Interest Income And Expense [Line Items]
Interest Expense, Deposits	$ (306)	$ (386)