23.	EARNINGS PER SHARE

Earnings per share are computed by dividing net income by the weighted average number of shares outstanding during the period. Diluted earnings per share is computed using the weighted average number of common shares determined for the basic computation plus the dilutive effect of potential common shares that could be issued under outstanding stock options and performance share units. There were no stock options that were anti-dilutive for the years ended December 31, 2017 and 2016, respectively. Stock options for 76,317 shares were anti-dilutive for the year ended December 31, 2015.

	Twelve months ended December 31,
	2017			2016			2015
	(In thousands, except per share data)
Net income per consolidated statements of income	$	21,785		$	18,828		$	16,282
Net income allocated to participating securities		(136	)		(121	)		(81	)
Net income allocated to common stock	$	21,649		$	18,707		$	16,201
Basic earnings per common share computation:
Distributed earnings allocated to common stock	$	6,919		$	5,140		$	3,350
Undistributed earnings allocated to common stock		14,730			13,567			12,851
Net earnings allocated to common stock	$	21,649		$	18,707		$	16,201
Weighted average common shares outstanding, including shares considered participating securities		49,459			46,967			48,320
Less: Average participating securities		(309	)		(301	)		(242	)
Weighted average shares		49,150			46,666			48,078
Basic earnings per common share	$	0.44		$	0.40		$	0.34
Diluted earnings per common share computation:
Net earnings allocated to common stock	$	21,649		$	18,707		$	16,201
Weighted average common shares outstanding for basic earnings per common share		49,150			46,666			48,078
Add: Dilutive potential common shares		342			371			272
Weighted average shares and dilutive potential common shares		49,492			47,037			48,350
Diluted earnings per common share	$	0.44		$	0.40		$	0.34