Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

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

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars and Shares in thousands, except per share data)	2017		2016		2017		2016
Numerator:
Net income	$	20,569	$	12,722	$	60,076	$	45,970
Denominator:
Weighted average basic shares	31,420		30,520		31,424		29,914
Dilutive potential common shares	848		797		856		747
Weighted average fully diluted shares	32,268		31,317		32,280		30,661
Earnings per share:
Basic	$	0.65	$	0.42	$	1.91	$	1.54
Diluted	$	0.64	$	0.41	$	1.86	$	1.50
Outstanding common stock equivalents having no dilutive effect	—		1		5		10