Mortgage Loans Held For Investment And Related Assets (Schedule Of Mortgage Loans Held For Investment And The Related Allowance) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Oct. 31, 2014	Apr. 30, 2014	Oct. 31, 2013
Mortgage Loans Held For Investment And Related Assets [Line Items]
Outstanding Principal Balance	$ 258,728	$ 277,423	$ 306,103
Loan Loss Allowance, Amount	9,761	11,272	12,704
Loan Loss Allowance, % of Principal	3.80%	4.10%	4.20%
% 30 Days Past Due	19.00%
Purchased From SCC
Mortgage Loans Held For Investment And Related Assets [Line Items]
Outstanding Principal Balance	148,833
Loan Loss Allowance, Amount	7,847
Loan Loss Allowance, % of Principal	5.30%
% 30 Days Past Due	27.90%
All Other
Mortgage Loans Held For Investment And Related Assets [Line Items]
Outstanding Principal Balance	109,895
Loan Loss Allowance, Amount	$ 1,914
Loan Loss Allowance, % of Principal	1.70%
% 30 Days Past Due	6.90%

Loans and Leases Receivable, Allowance as percent of principal

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- Details

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- Definition

Percent of loans thirty days past due

+ References

No definition available.

+ Details

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- Definition

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 310

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6873192&loc=d3e21338-158488

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

+ Details

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