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Supplemental Disclosure of Noncash Activities (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Apr. 30, 2013	Jan. 31, 2013
Supplemental Disclosure of Noncash Activities (Details) [Line Items]
Senior exchangeable notes exchanged for Class A Common Stock (in Shares)		18,305
Noncash Or Part Noncash Receivable Transferred From Joint Venture Parnters To Investment In Joint Venture		$ 0.6
Real Estate Owned, Transfer from Real Estate Owned	9.5
Note Foreclosure, Non-Recourse Liabilities Reduction	$ 9.5
Common Class A [Member]
Supplemental Disclosure of Noncash Activities (Details) [Line Items]
Stock Issued During Period, Shares, Conversion of Convertible Securities (in Shares)		3,396,102

X

- Definition

The amount of other assets that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

No definition available.

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X

- Definition

The reduction of liabilities associated with a note foreclosure.

+ References

No definition available.

+ Details

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X

- Definition

Senior exchangeable notes exchanged for Class A Common Stock

+ References

No definition available.

+ Details

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- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770



Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

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- Definition

Value transferred out of real estate owned (REO) in noncash transactions.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586



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