Earnings Per Share

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

There are no adjustments to “Net income attributable to Piedmont” or “Income from continuing operations” for the diluted earnings per share computations.

Net income per share-basic is calculated as net income available to common stockholders divided by the weighted average number of common shares outstanding during the period. Net income per share-diluted is calculated as net income available to common stockholders divided by the diluted weighted average number of common shares outstanding during the period, including the dilutive effect of nonvested restricted stock. The dilutive effect of nonvested restricted stock is calculated using the treasury stock method to determine the number of additional common shares that would become outstanding if the remaining unvested restricted stock awards vested. Outstanding stock options have been excluded from the diluted earnings per share calculation, as their impact would be anti-dilutive. The following table reconciles the denominator for the basic and diluted earnings per share computations shown on the consolidated statements of operations for the years ended December 2012, 2011, and 2010 (in thousands):

	2012	2011	2010
Weighted-average common shares—basic	170,312	172,765	170,753
Plus incremental weighted-average shares resulting from the assumed conversion of time-vested restricted stock awards	129	216	214
Weighted-average common shares—diluted	170,441	172,981	170,967