(Loss) Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

	Year Ended September 30,
	2021		2020		2019
Numerator:
Net (loss) income available to common shares	$	(68,577)	$	142,828	$	39,215
Denominator:
Weighted average common shares	29,126		29,136		28,571
Weighted average effect of dilutive securities	—		444		523
Diluted weighted average common shares	29,126		29,580		29,094
(Loss) earnings per share:
Basic	$	(2.35)	$	4.90	$	1.37
Diluted	$	(2.35)	$	4.83	$	1.35

Schedule of Shares Excluded Form Calculation of Diluted Earnings Per Share

Shares excluded from the calculation of Diluted (loss) earnings per share as their inclusion would have been anti-dilutive under the treasury stock method are as follows:

	Year Ended September 30,
	2021	2020	2019
Outstanding stock options	25	102	196