Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2012

Accounting Policies [Abstract]

Income Tax, Policy

Income Taxes

Piedmont has elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”), and has operated as such, beginning with its taxable year ended December 31, 1998. To qualify as a REIT, Piedmont must meet certain organizational and operational requirements, including a requirement to distribute at least 90% of its annual REIT taxable income. As a REIT, Piedmont is generally not subject to federal income taxes. Piedmont is subject to certain taxes related to the operations of properties in certain locations, as well as operations conducted by its taxable REIT subsidiary, which have been provided for in the financial statements.

Goodwill, Policy

Goodwill

Goodwill is the excess of cost of an acquired entity over the amounts specifically assigned to assets acquired and liabilities assumed in purchase accounting for business combinations. Piedmont tests the carrying value of its goodwill for impairment on an annual basis, or on an interim basis if an event occurs or circumstances change that would indicate the carrying amount may be impaired. Such interim circumstances may include, but are not limited to, significant adverse changes in legal factors or in the general business climate, adverse action or assessment by a regulator, unanticipated competition, the loss of key personnel, or persistent declines in an entity’s stock price below carrying value of the entity. In September 2011, the Financial Accounting Standards Board ("FASB") issued an amendment regarding the testing of goodwill for impairment effective for Piedmont on January 1, 2012. Under the amended guidance, Piedmont has the option, should it chose to do so, to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of the reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, Piedmont concludes that the estimated fair value is greater than the carrying amount, then performing the two-step impairment test is unnecessary. However, if Piedmont chooses to forgo the availability of the qualitative analysis, the test prescribed by authoritative accounting guidance is a two-step test. The first step involves comparing the estimated fair value of the entity to its carrying value, including goodwill. Fair value is determined by adjusting the trading price of the stock for various factors including, but not limited to: (i) liquidity or transferability considerations, (ii) control premiums, and/or (iii) fully distributed premiums, if necessary, multiplied by the common shares outstanding. If such calculated fair value exceeds the carrying value, no further procedures or analysis is permitted or required. However, if the carrying value exceeds the calculated fair value, goodwill is potentially impaired and step two of the analysis would be required. Step two of the test involves calculating the implied fair value of goodwill by deducting the fair value of all tangible and intangible net assets of the entity from the entity’s fair value calculated in step one of the test. If the implied value of the goodwill (the remainder left after deducting the fair values of the entity from its calculated overall fair value in step one of the test) is less than the carrying value of goodwill, an impairment loss would be recognized.