Consolidated Securitization Vehicles (Details 11) (Securitization Vehicles, USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Impaired Loans
Principal Balance	$ 82,094
Provision for Loan Loss	77,760
Loss Severity	95.00%
Subordinated interests in mortgages
Principal Balance	82,094
Provision for Loan Loss	$ 77,760
Loss Severity	95.00%

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant