Earnings per Share (Tables)

9 Months Ended

Jun. 30, 2020

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 and nine months ended June 30, 2020 and 2019.

	Three Months Ended June 30,				Nine Months Ended June 30,
	2020		2019		2020		2019
	(dollars in thousands, except per share data)
Net income	$	5,400	$	26,783	$	(691,944)	$	117,080
Weighted average common shares outstanding	55,082,621		56,995,007		55,788,751		57,321,561
Dilutive effect of stock based compensation	62,998		115,096		—		86,462
Weighted average common shares outstanding for diluted earnings per share calculation	55,145,619		57,110,103		55,788,751		57,408,023
Basic earnings per share	$	0.10	$	0.47	$	(12.40)	$	2.04
Diluted earnings per share	$	0.10	$	0.47	$	(12.40)	$	2.04