Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Three Months Ended March 31,
(Dollars in thousands, except per share data)	2019		2018
Basic earnings per share
Net income	$	22,705	$	18,027
Average common shares outstanding	51,359		46,952
Net income per share	$	0.44	$	0.38
Diluted earnings per share
Net income	$	22,705	$	18,027
Average common shares outstanding	51,359		46,952
Add: Dilutive effect of employee restricted stock and stock options	680		736
Average diluted shares outstanding	52,039		47,688
Net income per share	$	0.44	$	0.38