Earnings per Common Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands except share and per share data)	2018		2017		2018		2017
Numerator:
Net income available to common shareholders	$	14,688	$	9,433	$	29,974	$	18,477
Denominator for basic earnings per share – weighted average shares outstanding	20,238,852		16,984,563		20,221,010		16,969,431
Effect of dilutive common shares	174,726		248,204		206,782		238,381
Denominator for diluted earnings per share – adjusted weighted average shares outstanding	20,413,578		17,232,767		20,427,792		17,207,812
Basic earnings per share	$	0.73	$	0.56	$	1.48	$	1.09
Diluted earnings per share	$	0.72	$	0.55	$	1.47	$	1.07
Antidilutive shares excluded from computation of average dilutive earnings per share	1,422		—		2,495		—