Legal Proceedings (Details) (USD $)	Jun. 30, 2012
Legal Proceedings [Abstract]
Award by Judge Smith in Supervisory Goodwill legal proceedings	$ 205,013,000

The amount awarded by the Court of Federal Claims for lost value expectancy damages, plus tax gross-up if applicable, pursuant to a damages opinion issued in Supervisory Goodwill legal proceedings. The decision indicates that the damages were awarded net of any receivership deficit and outside the statutory receivership distribution scheme. The entity can give no assurances regarding the ultimate outcome of the Supervisory Goodwill legal proceedings, the final amount of any award or when it might be received.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant