Other Significant Transactions	6 Months Ended
Jun. 30, 2011
Other Significant Transactions [Abstract]
Other Significant Transactions	NOTE 4 — Other Significant Transactions *Property Loan Securitization Transactions* During the three months ended June 30, 2011, we completed a series of financing transactions that repaid $625.7 million of non-recourse property loans that were scheduled to mature between the years 2012 and 2016 with proceeds from new long-term, fixed-rate, non-recourse property loans, or the New Loans. The New Loans, which total $673.8 million, were closed in three parts; $218.6 million closed during the three months ended December 31, 2010, $120.6 million closed during the three months ended March 31, 2011, and $334.6 million closed during the three months ended June 30, 2011. All of the New Loans have a ten year term, with principal scheduled to amortize over 30 years. Subsequent to origination, the New Loans were sold to Federal Home Loan Mortgage Corp, or Freddie Mac, which then securitized the New Loans. The securitization trust will hold only the New Loans referenced above and the trust securities trade under the label FREMF 2011K-AIV. In connection with the refinancings during the three months ended June 30, 2011, we recognized a loss on debt extinguishment of $23.0 million in interest expense, consisting of $20.7 million in prepayment penalties and a $2.3 million write off of previous deferred loan costs. During the three months ended June 30, 2011, as part of the securitization transaction, we purchased for $51.5 million the first loss and mezzanine positions in the securitization trust, which have a face value of $100.9 million and stated maturity dates corresponding to the terms of the loans held by the trust. We designated these investments as available for sale securities and they are included in other assets in our condensed consolidated balance sheet at June 30, 2011. These investments were initially recognized at their purchased value and the discount to the face value will be accreted into interest income over the expected term of the securities. Based on their classification as available for sale securities, we measure these investment at fair value with changes in their fair value, other than the changes attributed to the accretion described above, recognized as an adjustment of accumulated other comprehensive income or loss within equity. *Common Stock Issuances* During the six months ended June 30, 2011, we sold 2.8 million shares of Common Stock under our “at the market,” or ATM, offering program, generating $70.6 million of gross proceeds, or $69.2 million net of commissions. Sales of approximately 325,000 of these shares were initiated during the six months ended June 30, 2011, but settled in the subsequent period. Accordingly, for accounting purposes these shares were not reflected as issued and outstanding during the six months ended June 30, 2011, and the net proceeds of $8.2 million will be recognized in the subsequent period. We used the net proceeds to fund the prepayment penalties and investments discussed above. *Acquisitions of Noncontrolling Partnership Interests* During the six months ended June 30, 2011, we acquired the remaining noncontrolling limited partnership interests in six consolidated real estate partnerships that own nine properties and in which our affiliates serve as general partner, for a total cost of $13.6 million. We recognized the excess of the cost over the carrying amount of the noncontrolling interests acquired as an adjustment of additional paid-in capital within Aimco equity, net of the amount of such adjustment allocated to common noncontrolling interests in Aimco Operating Partnership. During the six months ended June 30, 2010, there were no comparable acquisitions of noncontrolling limited partnership interests.

NOTE 4 — Other Significant Transactions

Property Loan Securitization Transactions

During the three months ended June 30, 2011, we completed a series of financing transactions that repaid $625.7 million of non-recourse property loans that were scheduled to mature between the years 2012 and 2016 with proceeds from new long-term, fixed-rate, non-recourse property loans, or the New Loans. The New Loans, which total $673.8 million, were closed in three parts; $218.6 million closed during the three months ended December 31, 2010, $120.6 million closed during the three months ended March 31, 2011, and $334.6 million closed during the three months ended June 30, 2011. All of the New Loans have a ten year term, with principal scheduled to amortize over 30 years. Subsequent to origination, the New Loans were sold to Federal Home Loan Mortgage Corp, or Freddie Mac, which then securitized the New Loans. The securitization trust will hold only the New Loans referenced above and the trust securities trade under the label FREMF 2011K-AIV. In connection with the refinancings during the three months ended June 30, 2011, we recognized a loss on debt extinguishment of $23.0 million in interest expense, consisting of $20.7 million in prepayment penalties and a $2.3 million write off of previous deferred loan costs.

During the three months ended June 30, 2011, as part of the securitization transaction, we purchased for $51.5 million the first loss and mezzanine positions in the securitization trust, which have a face value of $100.9 million and stated maturity dates corresponding to the terms of the loans held by the trust. We designated these investments as available for sale securities and they are included in other assets in our condensed consolidated balance sheet at June 30, 2011. These investments were initially recognized at their purchased value and the discount to the face value will be accreted into interest income over the expected term of the securities. Based on their classification as available for sale securities, we measure these investment at fair value with changes in their fair value, other than the changes attributed to the accretion described above, recognized as an adjustment of accumulated other comprehensive income or loss within equity.

Common Stock Issuances

During the six months ended June 30, 2011, we sold 2.8 million shares of Common Stock under our “at the market,” or ATM, offering program, generating $70.6 million of gross proceeds, or $69.2 million net of commissions. Sales of approximately 325,000 of these shares were initiated during the six months ended June 30, 2011, but settled in the subsequent period. Accordingly, for accounting purposes these shares were not reflected as issued and outstanding during the six months ended June 30, 2011, and the net proceeds of $8.2 million will be recognized in the subsequent period. We used the net proceeds to fund the prepayment penalties and investments discussed above.

Acquisitions of Noncontrolling Partnership Interests

During the six months ended June 30, 2011, we acquired the remaining noncontrolling limited partnership interests in six consolidated real estate partnerships that own nine properties and in which our affiliates serve as general partner, for a total cost of $13.6 million. We recognized the excess of the cost over the carrying amount of the noncontrolling interests acquired as an adjustment of additional paid-in capital within Aimco equity, net of the amount of such adjustment allocated to common noncontrolling interests in Aimco Operating Partnership. During the six months ended June 30, 2010, there were no comparable acquisitions of noncontrolling limited partnership interests.