ALLOWANCE FOR CREDIT LOSSES, Amortized Cost Basis (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2022		Mar. 31, 2022
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	$ 131,720	[1]	$ 69,671	[2]
2022/2021	26,764	[1]	39,075	[2]
2021/2020	19,059	[1]	5,295	[2]
2020/2019	2,161	[1]	1,507	[2]
2019/2018	269	[1]	127	[2]
2018/2017	37	[1]	15	[2]
Total	180,010	[1]	115,690	[2]
Non-recourse debt	(36,331)	[1],[3]	(38,769)	[2],[4]
Net credit exposure	143,679	[1]	76,921
Unguaranteed residual value	4,130		6,424
Notes Receivable [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	97,455		44,186
2022/2021	14,829		30,981
2021/2020	15,492		2,055
2020/2019	717		558
2019/2018	79		5
2018/2017	1		4
Total	128,573		77,789
Non-recourse debt	(45)	[3]	(35,037)	[4]
Net credit exposure	128,528		42,752
Unguaranteed residual value	0	[5]	0	[6]
Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	34,265		25,485
2022/2021	11,935		8,094
2021/2020	3,567		3,240
2020/2019	1,444		949
2019/2018	190		122
2018/2017	36		11
Total	51,437		37,901
Non-recourse debt	(36,286)	[3]	(3,732)	[4]
Net credit exposure	15,151		34,169
Unguaranteed residual value	$ 7,969	[5]	9,141	[6]
High CQR [Member] | Maximum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	1.00%
High CQR [Member] | Notes Receivable [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	$ 81,348		35,264
2022/2021	11,930		28,005
2021/2020	14,385		1,297
2020/2019	541		345
2019/2018	38		2
2018/2017	0		4
Total	108,242		64,917
Non-recourse debt	0	[3]	(30,274)	[4]
Net credit exposure	108,242		34,643
High CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	14,794		14,549
2022/2021	5,037		5,002
2021/2020	2,445		2,499
2020/2019	1,269		902
2019/2018	175		50
2018/2017	20		11
Total	23,740		23,013
Non-recourse debt	(35,202)	[3]	(3,385)	[4]
Net credit exposure	$ (11,462)		19,628
Average CQR [Member] | Minimum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	2.00%
Average CQR [Member] | Maximum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	10.00%
Average CQR [Member] | Notes Receivable [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	$ 16,107		8,922
2022/2021	2,899		2,976
2021/2020	1,107		758
2020/2019	176		213
2019/2018	41		3
2018/2017	1		0
Total	20,331		12,872
Non-recourse debt	(45)	[3]	(4,763)	[4]
Net credit exposure	20,286		8,109
Average CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	19,471		10,936
2022/2021	6,898		3,092
2021/2020	1,122		741
2020/2019	175		47
2019/2018	15		72
2018/2017	16		0
Total	27,697		14,888
Non-recourse debt	(1,084)	[3]	(347)	[4]
Net credit exposure	$ 26,613		14,541
Low CQR [Member] | Minimum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	10.00%
Low CQR [Member] | Maximum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	100.00%
Low CQR [Member] | Notes Receivable [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	$ 0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
2018/2017	0		0
Total	0		0
Non-recourse debt	0	[3]	0	[4]
Net credit exposure	0		0
Low CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
2018/2017	0		0
Total	0		0
Non-recourse debt	0	[3]	0	[4]
Net credit exposure	$ 0		$ 0

[1] Unguaranteed residual values of $4,130 that we retained after selling the related lease receivable is excluded from amortized cost.

[2] Unguaranteed residual values of $6,424 that we retained after selling the related lease receivable is excluded from amortized cost.

[3] Transfers consist of receivables that have been transferred to third-party financial institutions on a non-recourse basis.

[4] Transfers consist of receivables that have been transferred to third-party financial institutions on a non-recourse basis and receivables that are in the process of being transferred to third-party financial institutions.

[5] Includes unguaranteed residual values of $4,130 that we retained after selling the related lease receivable.

[6] Includes unguaranteed residual values of $6,424 that we retained after selling the related lease receivable.