The following table sets forth the computation of basic and diluted earnings per share:

	Three months ended				Six months ended
	June 30,				June 30,
(Dollars in thousands, except per share data)	2011		2010		2011		2010
Numerator for basic and diluted earnings per share -income available to common shareholders:
Net income	$	15,973	$	17,774	$	33,180	$	29,372
Dividends on preferred stock		0		0		0		1,865
Income available to common shareholders	$	15,973	$	17,774	$	33,180	$	27,507
Denominator for basic earnings per share - weighted average shares		57,694,792		57,539,901		57,642,970		56,356,877
Effect of dilutive securities —
Employee stock awards		945,250		944,176		974,958		893,621
Warrants		94,620		119,962		104,520		114,824
Denominator for diluted earnings per share - adjusted weighted average shares		58,734,662		58,604,039		58,722,448		57,365,322
Earnings per share available to common shareholders
Basic	$	0.28	$	0.31	$	0.58	$	0.49
Diluted	$	0.27	$	0.30	$	0.57	$	0.48