Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Basic and diluted earnings per share

Basic and diluted earnings per share has been computed based on the following:

	Years ended
(Dollars in thousands, except per share data)	December 31, 2019		December 31, 2018	December 31, 2017
Net income available to common stockholders, basic and diluted	$	210,544	181,878	116,377
Average outstanding shares - basic	88,255,290		83,603,515	77,537,664
Add: dilutive restricted stock units and stock options	130,485		73,670	69,941
Average outstanding shares - diluted	88,385,775		83,677,185	77,607,605
Basic earnings per share	$	2.39	2.18	1.50
Diluted earnings per share	$	2.38	2.17	1.50
Restricted stock units and stock options excluded from the   diluted average outstanding share calculation 1	—		1,357	—

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¹ Anti-dilution occurs when the unrecognized compensation cost per share of a restricted stock units or the exercise price of a stock option exceeds the market price of the Company’s stock.