OPERATING LEASE RIGHT-OF-USE ASSETS AND LIABILITIES - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Leases [Abstract]
Operating lease, right-of-use asset, statement of financial position	Other assets	Other assets
Operating lease, right-of-use asset	$ 30,100	$ 34,400
Operating lease, liability, statement of financial position	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Total operating lease liabilities	$ 32,055	$ 36,500