Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

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

(Dollars and shares in thousands, except per share amounts)	Three Months Ended				Nine Months Ended
	September 30, 2018		September 30, 2017		September 30, 2018		September 30, 2017
Numerator:
Net income	$	19,734	$	25,532	$	63,199	$	73,460
Denominator:
Weighted-average shares outstanding - basic	18,403		18,181		18,360		18,126
Effect of dilutive shares	275		407		289		377
Weighted-average shares outstanding - diluted	18,678		18,588		18,649		18,503
Basic earnings per share	$	1.07	$	1.40	$	3.44	$	4.05
Diluted earnings per share	$	1.06	$	1.37	$	3.39	$	3.97