FINANCING RECEIVABLES AND OPERATING LEASES (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2020		Mar. 31, 2019		Mar. 31, 2018	Mar. 31, 2017
Profit Recognized for Sales-type Leases [Abstract]
Net sales		$ 15,631
Cost of sales		13,039
Gross Profit		2,592
Interest Income on Sales-type Leases [Abstract]
Interest Income on sales-type leases		6,623
Lease income on operating leases		18,534
Financing Receivables [Abstract]
Reserve for credit losses		(3,189)		$ (2,614)		$ (2,664)	$ (5,392)
Reported as [Abstract]
Current		70,169		63,767
Estimated unguaranteed residual values for direct financing lease		14,972		8,996
Accumulated amortization of initial direct cost		295		275
Future scheduled minimum lease payments [Abstract]
Year ending March 31, 2021		39,414
2022		16,471
2023		9,396
2024		2,597
2025 and thereafter		1,614
Total		69,492
Investment in operating lease equipment - net [Abstract]
Cost of equipment under operating leases		21,276		21,532
Accumulated depreciation		(11,159)		(10,139)
Investment in operating lease equipment - net	[1]	10,117		11,393
Unguaranteed residual value of operating lease equipment net		3,100		2,900
Future scheduled minimum lease rental payments [Abstract]
Year ending March 31, 2021		4,844
2022		2,982
2023		1,653
2024		465
2025 and thereafter		22
Total		9,966
Collateral for non-recourse notes payable - Financing receivables		34,600		50,200
Collateral for non-recourse notes payable - Operating leases		6,700		7,800
Gain on sale of financing receivables		21,800		9,100		6,800
Proceeds from sale of financing receivables		593,700		276,100		267,300
Deferred revenue for servicing obligation		400		400
Notes Receivables [Member]
Financing Receivables [Abstract]
Minimum payments		55,417		40,563
Estimated unguaranteed residual value		0	[2]	0	[3]
Initial direct costs, net of amortization		212	[4]	377	[5]
Unearned income		0		0
Reserve for credit losses		(798)	[6]	(505)	[6]	(486)	(3,434)
Total, net		54,831		40,435
Reported as [Abstract]
Current		31,181		30,852
Long-term		23,650		9,583
Total, net		54,831		40,435
Lease-Related Receivables [Member]
Financing Receivables [Abstract]
Minimum payments		69,492		64,201
Estimated unguaranteed residual value		21,862	[2]	14,639	[3]
Initial direct costs, net of amortization		247	[4]	332	[5]
Unearned income		(11,612)		(7,671)
Reserve for credit losses		(610)	[6]	(530)	[6]	$ (640)	$ (679)
Total, net		79,379		70,971
Reported as [Abstract]
Current		38,988		32,914
Long-term		40,391		38,057
Total, net		79,379		70,971
Total Financing Receivables [Member]
Financing Receivables [Abstract]
Minimum payments		124,909		104,764
Estimated unguaranteed residual value		21,862	[2]	14,639	[3]
Initial direct costs, net of amortization		459	[4]	709	[5]
Unearned income		(11,612)		(7,671)
Reserve for credit losses	[6]	(1,408)		(1,035)
Total, net		134,210		111,406
Reported as [Abstract]
Current		70,169		63,766
Long-term		64,041		47,640
Total, net		$ 134,210		$ 111,406

[1] Amounts include estimated unguaranteed residual values of $3.1 million and $2.9 million as of March 31, 2020, and 2019, respectively.

[2] Includes estimated unguaranteed residual values of $14,972 thousand for sales-type leases, which have been sold and accounted for as sales.

[3] Includes $8,996 thousand for estimated residual values of sales-type leases and direct financing leases for which we sold the financing assets.

[4] Initial direct costs are shown net of amortization of $295 thousand.

[5] Initial direct costs are shown net of amortization of $275 thousand.

[6] For details on reserve for credit losses, refer to Note 7, “Reserves for Credit Losses.”