	For the Three Months Ended March 31,
(unaudited, in thousands, except shares and per share amounts)	2020		2019
Numerator for both basic and diluted earnings per common share:
Net income	$	23,396	$	40,337
Denominator:
Total average basic common shares outstanding		67,486,550		54,598,499
Effect of dilutive stock options and other stock compensation		100,896		107,838
Total diluted average common shares outstanding		67,587,446		54,706,337
Earnings per common share - basic	$	0.35	$	0.74
Earnings per common share - diluted	$	0.35	$	0.74

As of March 31, 2020 and 2019, respectively, 510,186 shares and 117,600 options to purchase shares were not included in the computation of net income per diluted share because the exercise price was greater than the average market price of the common share, therefore, the effect would be antidilutive.

As of March 31, 2020, shares related to the 2019, 2018 and 2017 total shareholder return plans were not included in the calculation because the effect would be antidilutive. As of March 31, 2019, 44,688 contingently issuable shares were estimated to be awarded under the 2018 and 2017 total shareholder return plans, as stock performance targets had been met as of such date and therefore those shares were included in the diluted calculation.

Performance-based restricted stock compensation totaling 25,618 and 17,081 shares were estimated to be awarded as of March 31, 2020 and 2019, respectively, and are included in the diluted calculation.

On November 22, 2019, Wesbanco issued 13,351,837 shares of common stock to complete its acquisition of OLBK and granted 34,998 shares of restricted stock to certain OLBK employees. These shares are included in average shares outstanding beginning on that date. For additional information relating to the OLBK acquisition, refer to Note 2, “Mergers and Acquisitions.”