EQUITY, STOCK-BASED COMPENSATION AND EARNINGS (LOSS) PER SHARE - Basic and diluted net loss per share (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
	Sep. 27, 2021	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Consolidated net income (loss)		$ 365			$ (3,556)			$ (96,196)	$ (93,631)
Less: Net (loss) income attributable to noncontrolling interests		(1,475)			172			(719)	(769)
Net income (loss) attributable to common shareholders		$ 1,840	$ (9,994)	$ (87,323)	$ (3,728)	$ (6,087)	$ (83,047)	$ (95,477)	$ (92,862)
Denominator:
Weighted-average shares outstanding - Basic (in shares)		25,726,000			25,510,000			25,690,000	23,938,000
Effect of dilutive securities:
Stock options, restricted stock units and restricted stock awards		295,000			0			0	0
Weighted-average shares outstanding - Diluted (in shares)		26,021,000			25,510,000			25,690,000	23,938,000
Shares excluded in computing of earnings (in shares)		5,494,000			5,549,000			5,790,000	5,549,000
Shares issuable upon conversion (in shares)	3,040,268