INCOME TAXES - NARRATIVE (Details)	Sep. 30, 2021 USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 4,300,000
Unrecognized tax benefits, interest	0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0
Deferred income tax assets	2,700,000
Deferred income tax liabilities	400,000
Valuation allowance of deferred tax assets	$ (28,500,000)