Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share, Basic and Diluted [Abstract]

Summary of Computation for Basic and Diluted Earnings per Share

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

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(Dollars and shares in thousands, except per share data)	2019		2018		2019		2018
Numerator:
Net income	$	17,662	$	14,964	$	50,209	$	32,171
Net income allocated to unvested restricted stock awards	(58)		(86)		(186)		(225)
Net income allocated to common shares	$	17,604	$	14,878	$	50,023	$	31,946
Denominator:
Weighted average shares outstanding	29,306		29,402		29,290		29,387
Average unvested restricted stock awards	(95)		(170)		(111)		(204)
Denominator for basic earnings per share—weighted-average shares outstanding	29,211		29,232		29,179		29,183
Effect of dilutive securities—employee stock options and restricted stock units	74		86		64		92
Denominator for diluted earnings per share—adjusted weighted-average shares outstanding	29,285		29,318		29,243		29,275
Basic earnings per share	$	0.60	$	0.51	$	1.71	$	1.10
Diluted earnings per share	$	0.60	$	0.51	$	1.71	$	1.09
Average anti-dilutive options and restricted stock units excluded from computation of diluted earnings per share	323		359		326		315