ALLOWANCE FOR CREDIT LOSSES, Amortized Cost Basis (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2023		Mar. 31, 2023
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	$ 122,761	[1]	$ 130,373	[2]
2023/2022	51,467	[1]	21,325	[2]
2022/2021	14,352	[1]	14,166	[2]
2021/2020	9,526	[1]	1,085	[2]
2020/2019	393	[1]	145	[2]
2019/2018 and prior	28	[1]	10	[2]
Total	198,527	[1]	167,104	[2]
Transfers	(51,246)	[1],[3]	(32,578)	[2],[4]
Net credit exposure	147,281	[1]	134,526
Unguaranteed residual value	$ 4,027		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	$ 92,471		84,948
2023/2022	28,469		14,053
2022/2021	8,464		11,480
2021/2020	7,600		485
2020/2019	80		91
2019/2018 and prior	5		1
Total	137,089		111,058
Transfers	(43,727)	[3]	(29,547)	[4]
Net credit exposure	93,362		81,511
Unguaranteed residual value	0	[5]	0	[6]
Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	30,290		45,425
2023/2022	22,998		7,272
2022/2021	5,888		2,686
2021/2020	1,926		600
2020/2019	313		54
2019/2018 and prior	23		9
Total	61,438		56,046
Transfers	(7,519)	[3]	(3,031)	[4]
Net credit exposure	53,919		53,015
Unguaranteed residual value	$ 8,794	[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	$ 79,740		72,155
2023/2022	22,969		11,378
2022/2021	6,850		11,267
2021/2020	7,515		370
2020/2019	80		30
2019/2018 and prior	0		0
Total	117,154		95,200
Transfers	(36,784)	[3]	(28,115)	[4]
Net credit exposure	80,370		67,085
High CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	16,364		21,629
2023/2022	10,424		3,842
2022/2021	2,543		1,916
2021/2020	1,408		565
2020/2019	287		51
2019/2018 and prior	23		9
Total	31,049		28,012
Transfers	(4,524)	[3]	(1,437)	[4]
Net credit exposure	$ 26,525		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	$ 12,731		12,793
2023/2022	5,500		2,675
2022/2021	1,614		213
2021/2020	85		115
2020/2019	0		61
2019/2018 and prior	5		1
Total	19,935		15,858
Transfers	(6,943)	[3]	(1,432)	[4]
Net credit exposure	12,992		14,426
Average CQR [Member] | Lease Receivables [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2024/2023	13,926		23,796
2023/2022	12,574		3,430
2022/2021	3,345		770
2021/2020	518		35
2020/2019	26		3
2019/2018 and prior	0		0
Total	30,389		28,034
Transfers	(2,995)	[3]	(1,594)	[4]
Net credit exposure	$ 27,394		$ 26,440

[1] Excludes unguaranteed residual values of $4,027 thousand that we retained after selling the related lease receivable.

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

[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 $4,027 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.