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Other Pronouncements	9 Months Ended
Other Pronouncements	Sep. 30, 2011
Other Pronouncements [Abstract]
Other Pronouncements	7. Other Pronouncements In May 2011, FASB issued Accounting Standards Update (“ASU”) 2011-04, “Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in accounting principles generally accepted in the United States of America (“U.S. GAAP”) and International Financial Reporting Standards (“IFRSs”).” The amendments within this ASU change the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements to eliminate unnecessary wording differences between U.S. GAAP and IFRSs. However, some of the amendments clarify the FASB's intent about the application of existing fair value measurement requirements and other amendments change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The ASU is effective for annual and interim periods beginning after December 15, 2011 for public entities. This new guidance is not expected to have a material impact on the Partnership's financial statements.