The Company records its liability for incentive management fees as it becomes legally obligated to pay them, based on a hypothetical liquidation at the end of each reporting period. The Company’s obligation to pay incentive management fees with respect to any fiscal quarter is based on a formula that reflects the Company’s results over a trailing four-fiscal quarter period ending with the current fiscal quarter. The Company is legally obligated to pay the amount resulting from the formula less any cash payments of incentive management fees during the prior three quarters. The formula’s requirement to reduce the incentive management fee by amounts paid with respect to incentive fees in the prior three quarters has caused the Company’s incentive fee expense to become, and currently is expected to be, concentrated in the fourth quarter of each year. Management believes that reflecting incentive fees throughout the year, as the related investment income is earned, is an effective measure of the Company’s profitability and financial performance that facilitates comparison of current results with historical results and with those of the Company’s peers. The Company’s “as adjusted” results reflect incentive management fees based on the formula the Company utilizes for each trailing four-fiscal quarter period, with the formula applied to the current quarter’s incremental earnings and without any reduction for incentive management fees paid during the prior three quarters. The resulting amount represents an upper limit of each quarter’s incremental incentive management fees that the Company may become legally obligated to pay at the end of the year. Prior year amounts are estimated in the same manner. These estimates represent upper limits because, in any calendar year, subsequent quarters’ investment underperformance could reduce the incentive management fees payable by the Company with respect to prior quarters’ operating results. The incremental incentive management fees disclosed for a given period are not necessarily indicative of actual full year results. Changes in the economic environment, financial markets and other parameters used in determining such estimates could cause actual results to differ and such differences could be material. For a more detailed description of the Company’s incentive management fee, please refer to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2011 on file with the SEC.