ALLOWANCE FOR CREDIT LOSSES, Amortized Cost Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024		Mar. 31, 2023
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	$ 127,633	[1]	$ 130,373	[2]
2023/2022	38,086	[1]	21,325	[2]
2022/2021	7,216	[1]	14,166	[2]
2021/2020	4,118	[1]	1,085	[2]
2020/2019	132	[1]	145	[2]
2019/2018	7	[1]	10	[2]
Total	177,192	[1]	167,104	[2]
Non-recourse debt	(35,723)	[1],[3]	(32,578)	[2],[4]
Net credit exposure	141,469	[1]	134,526	[2]
Unguaranteed residual value	$ 3,718		4,222
Minimum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	8.00%
Maximum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	100.00%
Notes Receivable [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	$ 82,649		84,948
2023/2022	19,081		14,053
2022/2021	3,742		11,480
2021/2020	2,708		485
2020/2019	30		91
2019/2018	0		1
Total	108,210		111,058
Non-recourse debt	(29,159)	[3]	(29,547)	[4]
Net credit exposure	79,051		81,511
Unguaranteed residual value	0	[5]	0	[6]
Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	44,984		45,425
2023/2022	19,005		7,272
2022/2021	3,474		2,686
2021/2020	1,410		600
2020/2019	102		54
2019/2018	7		9
Total	68,982		56,046
Non-recourse debt	(6,564)	[3]	(3,031)	[4]
Net credit exposure	62,418		53,015
Unguaranteed residual value	$ 9,078	[5]	8,161	[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]
2024/2023	$ 63,934		72,155
2023/2022	15,821		11,378
2022/2021	3,440		11,267
2021/2020	2,656		370
2020/2019	30		30
2019/2018	0		0
Total	85,881		95,200
Non-recourse debt	(25,683)	[3]	(28,115)	[4]
Net credit exposure	60,198		67,085
High CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	22,123		21,629
2023/2022	9,457		3,842
2022/2021	1,341		1,916
2021/2020	1,151		565
2020/2019	100		51
2019/2018	7		9
Total	34,179		28,012
Non-recourse debt	(1,128)	[3]	(1,437)	[4]
Net credit exposure	$ 33,051		26,575
Average CQR [Member] | Minimum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	1.00%
Average CQR [Member] | Maximum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loss rate on credit quality rating	8.00%
Average CQR [Member] | Notes Receivable [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	$ 18,715		12,793
2023/2022	3,260		2,675
2022/2021	302		213
2021/2020	52		115
2020/2019	0		61
2019/2018	0		1
Total	22,329		15,858
Non-recourse debt	(3,476)	[3]	(1,432)	[4]
Net credit exposure	18,853		14,426
Average CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	22,861		23,796
2023/2022	9,548		3,430
2022/2021	2,133		770
2021/2020	259		35
2020/2019	2		3
2019/2018	0		0
Total	34,803		28,034
Non-recourse debt	(5,436)	[3]	(1,594)	[4]
Net credit exposure	$ 29,367		$ 26,440

[1] Unguaranteed residual values of $3,718 thousand that we retained after selling the related lease receivable is excluded from amortized cost.

[2] Unguaranteed residual values of $4,222 thousand 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 $3,718 thousand that we retained after selling the related lease receivable.

[6] Includes unguaranteed residual values of $4,222 thousand that we retained after selling the related lease receivable.