FINANCE RECEIVABLES - Schedule of Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	$ 1,209	$ 1,109	$ 559	$ 150
Provision for expected losses	100	100	350	0
Write-offs	(247)		0
Ending balance	$ 1,062	1,209	$ 909	559
Impact of adoption of ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance		$ 0		$ 409