Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share

Schedule of computation of basic and diluted earnings per share

	Three Months Ended
	March 31,
(Dollars and shares in thousands, except for per share amounts)	2019		2018
Basic earnings per common share:
Net income	$	44,367	$	42,326
Weighted-average basic common shares		35,445		36,646
Basic earnings per common share	$	1.25	$	1.15
Diluted earnings per share:
Net income	$	44,367	$	42,326
Weighted-average basic common shares		35,445		36,646
Effect of dilutive securities		174		253
Weighted-average dilutive shares		35,619		36,899
Diluted earnings per common share	$	1.25	$	1.15

Schedule of anti-dilutive securities excluded from computation of diluted earnings per common share

	Three Months Ended March 31,
(Dollars in thousands)	2019					2018
Number of shares					87,917					61,272
Range of exercise prices	$	63.54	to	$	91.35	$	91.05	to	$	91.35