Basic earnings per common share are computed by dividing income allocated to common stockholders by the weighted-average number of common shares outstanding during each period. The computation of diluted earnings per common share considers the number of shares issuable upon the assumed exercise of outstanding common stock options. Antidilutive common shares are not included in the calculation of diluted earnings per common share. For the three and six months ended June 30, 2020, shares deemed to be antidilutive, and thus excluded from the computation of earnings per common share, were 338,000 and 303,000, respectively. For the three and six months ended June 30, 2019, shares deemed to be antidilutive, and thus excluded from the computation of earnings per common share, were 360,000 and 396,000, respectively.

The table below shows earnings per common share and diluted earnings per common share, and reconciles the numerator and denominator of both earnings per common share calculations.


	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
	(In thousands, except per share amounts)
Earnings per common share:
Net earnings	$	41,631	$	54,481	$	79,611	$	106,123
Less: Net earnings allocated to restricted stock		158		134		237		276

Net earnings allocated to common shareholders	$	41,473	$	54,347	$	79,374	$	105,847

Weighted average shares outstanding		134,998		139,748		137,052		139,682
Basic earnings per common share	$	0.31	$	0.39	$	0.58	$	0.76


Diluted earnings per common share:
Net income allocated to common shareholders		41,473		54,347		79,374		105,847

Weighted average shares outstanding		134,998		139,748		137,052		139,682
Incremental shares from assumed exercise of outstanding options		156		149		176		179

Diluted weighted average shares outstanding		135,154		139,897		137,228		139,861
Diluted earnings per common share	$	0.31	$	0.39	$	0.58	$	0.76