STOCKHOLDERS’ EQUITY - Performance RSU Activity (Details) - Performance RSUs	9 Months Ended
	Jun. 30, 2023 $ / shares shares
Number of Shares
Outstanding at beginning of period (in shares) | shares	919,456
Granted (in shares) | shares	325,837
Settled (in shares) | shares	(24,723)
Canceled (in shares) | shares	(241,008)
Outstanding at end of period (in shares) | shares	979,562
Weighted-Average Fair Market Value Per Share
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 13.43
Granted (in dollars per share) | $ / shares	10.23
Settled (in dollars per share) | $ / shares	9.21
Canceled (in dollars per share) | $ / shares	13.20
Outstanding at end of period (in dollars per share) | $ / shares	$ 12.53