Basic earnings per common share are computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under stock options.

 

		Three Months Ended June 30,								Six Months Ended June 30,
		2018				2017				2018				2017
		(In Thousands, Except Shares and Per Share Data)
Earnings per common share
Weighted average common shares outstanding			53,150,142				52,864,761				53,116,420				52,805,378
Net income available to common stockholders		$	33,509			$	24,133			$	66,112			$	46,652
Basic earnings per common share		$	0.63			$	0.46			$	1.24			$	0.88
Weighted average common shares outstanding			53,150,142				52,864,761				53,116,420				52,805,378
Dilutive effects of assumed conversions and exercise of stock options and warrants			1,045,881				1,235,843				1,073,326				1,311,694
Weighted average common and dilutive potential common shares outstanding			54,196,023				54,100,604				54,189,746				54,117,072
Net income available to common stockholders		$	33,509			$	24,133			$	66,112			$	46,652
Diluted earnings per common share		$	0.62			$	0.45			$	1.22			$	0.86