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Earnings Per Share
3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share

Basic earnings per share amounts are based on the weighted average of common shares outstanding for the respective periods. Diluted earnings per share amounts are based on the weighted average of common shares outstanding plus the dilutive effect of potential common stock. Potential common stock includes outstanding partnership units exchangeable for common shares under the Continuing Offer (Note 10), outstanding options for partnership units, PSU, RSU, deferred shares under the Non-Employee Directors’ Deferred Compensation Plan, and unissued partnership units under a unit option deferral election (Note 9). In computing the potentially dilutive effect of potential common stock, partnership units are assumed to be exchanged for common shares under the Continuing Offer, increasing the weighted average number of shares outstanding. The potentially dilutive effects of partnership units outstanding and/or issuable under the unit option deferral elections are calculated using the if-converted method, while the effects of other potential common stock are calculated using the treasury method. Contingently issuable shares are included in diluted EPS based on the number of shares, if any, that would be issuable if the end of the reporting period were the end of the contingency period. 
 
Three Months Ended March 31
 
2016
 
2015
Net income attributable to Taubman Centers, Inc. common shareowners (Numerator):
 
 
 
Basic
$
24,613

 
$
29,622

Impact of additional ownership of TRG
66

 
125

Diluted
$
24,679

 
$
29,747

 
 
 
 
Shares (Denominator) – basic
60,275,004

 
63,039,777

Effect of dilutive securities
515,997

 
895,503

Shares (Denominator) – diluted
60,791,001

 
63,935,280

 
 
 
 
Earnings per common share – basic
$
0.41

 
$
0.47

Earnings per common share – diluted
$
0.41

 
$
0.47



The calculation of diluted earnings per share in certain periods excluded certain potential common stock including outstanding partnership units and unissued partnership units under a unit option deferral election, both of which may be exchanged for common shares of the Company under the Continuing Offer. The table below presents the potential common stock excluded from the calculation of diluted earnings per share as they were anti-dilutive in the period presented.

 
Three Months Ended March 31
 
2016
 
2015
Weighted average noncontrolling partnership units outstanding
4,003,975

 
4,149,149

Unissued partnership units under unit option deferral elections
871,262

 
871,262