Net (Loss) Income per Share - Tabular Disclosure (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Loss from continuing operations	$ (2,463)	$ (7,015)	$ (15,689)	$ (5,973)
Income (loss) from discontinued operations, net of tax	993	(2,555)	(1,943)	2,159,597
Net (loss) income - basic	(1,470)	(9,570)	(17,632)	2,153,624
Net (loss) income - diluted	$ (1,470)	$ (9,570)	$ (17,632)	$ 2,153,624
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average common shares outstanding used in computing basic (loss) income per share (in shares)	63,432	74,989	68,494	74,879
Weighted average common shares outstanding used in computing diluted (loss) income per share (in shares)	63,432	74,989	68,494	74,879
Earnings Per Share, Basic [Abstract]
Loss from continuing operations (in dollars per share)	$ (0.04)	$ (0.09)	$ (0.23)	$ (0.08)
Income (loss) from discontinued operations, net of tax in Basic (in dollars per share)	0.02	(0.03)	(0.03)	28.84
Basic Net (loss) income per share (in dollars per share)	(0.02)	(0.13)	(0.26)	28.76
Earnings Per Share, Diluted [Abstract]
Income (loss) from continuing operations in diluted (in dollars per share)	(0.04)	(0.09)	(0.23)	(0.08)
Income (loss) from discontinued operations, net of tax in diluted (in dollars per share)	0.02	(0.03)	(0.03)	28.84
Diluted Net (loss) income per share (in dollars per share)	$ (0.02)	$ (0.13)	$ (0.26)	$ 28.76