The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

+ References+ Details

The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

+ References+ Details

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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

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

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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-Paragraph 1

-Article 5

+ Details

Assets Held at Refco Capital Markets, Ltd. - Additional Information (Detail) (USD $)	1 Months Ended					1 Months Ended
	Jun. 07, 2007	Apr. 20, 2007	Dec. 29, 2006	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2005 LLC equity/Non-Trading	Oct. 31, 2005 LLC equity/Non-Trading
Cash, cash equivalents and marketable securities [Line Items]
Fixed income securities held by affiliate				$ 19,952,245	$ 21,870,890		$ 57,544,206
Substitute units held by affiliate							2,273,288
Cash and cash equivalents on deposit with affiliate				5,180,075	9,596,823		1,000,000
Assets held in trust						56,544,206
Impairment charge of assets held by affiliate	3,590,557	3,856,315	6,643,944			39,580,944
Net asset held by trust						$ 16,963,262
Percentage decrease in asset held in trust to original value of assets						30.00%