Interest Income And Interest Expense (Schedule Of Interest Income And Expense Of Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Schedule Of Interest Income And Expense [Line Items]
Proceeds from Sale and Collection of Loans Held-for-sale	$ 188,200
Other income, net	(170)	$ 3,055	$ 4,978	$ 13,993
Other income, net	304	(6,140)	(30)	(11,335)
Mortgage Loans, Net
Schedule Of Interest Income And Expense [Line Items]
Other income, net	(377)	2,186	2,668	2,220
AFS Securities
Schedule Of Interest Income And Expense [Line Items]
Other income, net	51	36	134	8,804
Other
Schedule Of Interest Income And Expense [Line Items]
Other income, net	76	833	2,096	2,969
Borrowings
Schedule Of Interest Income And Expense [Line Items]
Other income, net	80	0	80	0
Other income, net	0	(3,516)	(27)	(8,138)
Gain (Loss) on Investments [Member]
Schedule Of Interest Income And Expense [Line Items]
Other income, net	0	(2,500)	0	(2,500)
Deposits
Schedule Of Interest Income And Expense [Line Items]
Other income, net	$ 304	$ (124)	$ (3)	$ (697)