LEASES - Maturities of operating and finance lease (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Maturities of operating lease liabilities
2022 (remainder of fiscal year)	$ 5,136
2023	5,227
2024	4,373
2025	3,601
2026	2,937
Thereafter	7,011
Total minimum future lease payments	28,285
Less interest	(3,906)
Total operating lease liabilities	24,379	$ 8,513
Maturities of finance lease liabilities
2022 (remainder of fiscal year)	18
2023	18
2024	18
2025	7
Total minimum future lease payments	61
Less interest	(4)
Total finance lease liabilities	$ 57	$ 63