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Other Pronouncements	3 Months Ended
Other Pronouncements	Mar. 31, 2013
Other Pronouncements [Abstract]
Other Pronouncements	7. Other Pronouncements In October 2011, the FASB issued a proposed ASU intended to improve and converge financial reporting by setting forth consistent criteria for determining whether an entity is an investment company. Under longstanding U.S. GAAP, investment companies carry all of their investments at fair value, even if they hold a controlling interest in another company. The primary changes being proposed by the FASB relate to which entities would be considered investment companies as well as certain disclosure and presentation requirements. In addition to the changes to the criteria for determining whether an entity is an investment company, the FASB also proposes that an investment company would be required to consolidate another investment company if it holds a controlling financial interest in the entity. In August 2012, the FASB updated the proposed ASU to state that entities regulated under the Investment Company Act of 1940 should qualify to be investment companies within the proposed investment company guide. The Partnership will evaluate the impact that this proposed update would have on the financial statements once the pronouncement is issued.