Earnings per Share (Tables)

3 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Schedule of basic and diluted earnings per share

The following information was used in the computation of basic and diluted earnings per share (EPS) for the three months ended December 31, 2017 and 2016:

	Three Months Ended
	December 31, 2017		December 31, 2016
	(dollars in thousands, except per share data)
Net income	$	29,230	$	36,903
Weighted average common shares outstanding	58,902,629		58,750,522
Dilutive effect of stock based compensation	185,100		241,383
Weighted average common shares outstanding for diluted earnings per share calculation	59,087,729		58,991,905
Basic earnings per share	$	0.50	$	0.63
Diluted earnings per share	$	0.49	$	0.63