ALLOWANCE FOR CREDIT LOSSES, Disaggregated Based on Impairment (Details) - USD ($) $ in Thousands	Sep. 30, 2020		Mar. 31, 2020		Sep. 30, 2019	Mar. 31, 2019
Allowance for credit losses [Abstract]
Ending balance	$ 4,894		$ 3,189		$ 2,868	$ 2,614
Notes Receivable [Member]
Allowance for credit losses [Abstract]
Ending balance: collectively evaluated for impairment			736
Ending balance: individually evaluated for impairment			62
Ending balance	1,337	[1]	798	[1]	520	505
Minimum payments [Abstract]
Ending balance: collectively evaluated for impairment			55,005
Ending balance: individually evaluated for impairment			412
Ending balance			55,417
Lease Receivables [Member]
Allowance for credit losses [Abstract]
Ending balance: collectively evaluated for impairment			610
Ending balance: individually evaluated for impairment			0
Ending balance	$ 1,227	[1]	610	[1]	$ 500	$ 530
Minimum payments [Abstract]
Ending balance: collectively evaluated for impairment			69,492
Ending balance: individually evaluated for impairment			0
Ending balance			$ 69,492

[1] Refer to Note 7, “Allowance for Credit Losses” for details.