Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Earnings Per Share Basic And Diluted

The following table presents the calculation for both basic and diluted EPS:

(in thousands, except per share data)	Year ended September 30,
	2020		2019			2018
Net income (loss)	$	130,695	$	(27,460	)	$	51,987
Weighted average shares outstanding		115,663		117,724			116,390
Dilutive effect of employee stock options, restricted shares and restricted stock units		604		—			1,768
Diluted weighted average shares outstanding		116,267		117,724			118,158
Basic earnings (loss) per share	$	1.13	$	(0.23	)	$	0.45
Diluted earnings (loss) per share	$	1.12	$	(0.23	)	$	0.44