Mortgage Loans Held For Investment And Related Assets (Schedule Of Non-Accrual Loans) (Details) (USD $) In Thousands	Jul. 31, 2011	Apr. 30, 2011
Loans receivable recorded investment non-accrual status	$ 161,241	$ 157,464
Financing receivable modifications to recorded investments	3,945	3,178
Total non-accrual loans	165,186	160,642
Purchased From SCC [Member]
Loans receivable recorded investment non-accrual status	138,277	143,358
Financing receivable modifications to recorded investments	3,767	2,849
All Other [Member]
Loans receivable recorded investment non-accrual status	22,964	14,106
Financing receivable modifications to recorded investments	$ 178	$ 329

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953670-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953676-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554

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