Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding restricted stock awards were vested, using the treasury stock method.

Basic and diluted earnings per share has been computed based on the following:



	Three Months ended			Six Months ended
(Dollars in thousands, except per share data)	June 30, 2017		June 30, 2016	June 30, 2017	June 30, 2016
Net income available to common stockholders, basic and diluted	$	33,687	30,451	64,942	59,133
Average outstanding shares - basic	77,546,236		76,170,734	77,061,867	76,148,493
Add: dilutive restricted stock awards	46,089		34,335	63,810	43,162
Average outstanding shares - diluted	77,592,325		76,205,069	77,125,677	76,191,655
Basic earnings per share	$	0.43	0.40	0.84	0.78
Diluted earnings per share	$	0.43	0.40	0.84	0.78

There were no restricted stock awards excluded from the diluted average outstanding share calculation for the six months ended June 30, 2017 and 2016. Anti-dilution occurs when the unrecognized compensation cost per share of a restricted stock award exceeds the market price of the Company’s stock.