Earnings per Share - Tabular Disclosure (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Income (loss) from continuing operations	$ (11,235)	$ 2,858
Income from discontinued operations, net of tax		40,462
Net income (loss)	(11,235)	43,320
Net income - basic	(11,235)	43,320
Net income - diluted	$ (11,235)	$ 43,320
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average common shares outstanding used in computing basic income (loss) per share (in shares)	72,543	74,630
Dilutive restricted stock units (in shares)		236
Weighted average common shares outstanding used in computing diluted income (loss) per share (in shares)	72,543	74,866
Earnings Per Share, Basic [Abstract]
Income / (loss) from continuing operations (in dollars per share)	$ (0.15)	$ 0.04
Income from discontinued operations, net of tax (in dollars per share)		0.54
Basic net income per share (in dollars per share)	(0.15)	0.58
Earnings Per Share, Diluted [Abstract]
Income (loss) from continuing operations (in dollars per share)	(0.15)	0.04
Income from discontinued operations, net of tax (in dollars per share)		0.54
Diluted net income (loss) per share (in dollars per share)	$ (0.15)	$ 0.58