EARNINGS (LOSS) PER SHARE - Computation Of Basic And Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income (loss) from continuing operations	$ 30,889		$ 2,151		$ 50,300	$ (8,630)
Net (loss) income from discontinued operations, net of tax	0		(11)		0	11,255
Net income	$ 30,889	$ 19,411	$ 2,140	$ 485	$ 50,300	$ 2,625
Denominator:
Basic weighted average shares outstanding (shares)	94,036		100,117		95,579	100,837
Effect of dilutive stock options, unvested restricted stock and unvested restricted share units (shares)	772		445		544	0
Diluted weighted average shares outstanding (shares)	94,808		100,562		96,123	100,837
Basic net income (loss) per common share:
Continuing operations (USD per share)	$ 0.33		$ 0.02		$ 0.53	$ (0.09)
Discontinued operations (USD per share)	0		0		0	0.11
Basic net income per common share (USD per share)	0.33		0.02		0.53	0.02
Diluted net income (loss) per common share:
Continuing operations (USD per share)	0.33		0.02		0.52	(0.09)
Discontinued operations (USD per share)	0		0		0	0.11
Diluted income per common share (USD per share)	$ 0.33		$ 0.02		$ 0.52	$ 0.02