ALLOWANCE FOR CREDIT LOSSES, Aging Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2021		Mar. 31, 2021
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Billed	$ 11,534		$ 9,616
Unbilled	148,779		168,448
Total	160,313	[1]	178,064	[2]
Notes Receivable [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Billed	8,010		5,471
Unbilled	107,436		107,170
Total	115,446		112,641
Lease Receivables [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Billed	3,524		4,145
Unbilled	41,343		61,278
Total	44,867		65,423
Past Due [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	2,844		3,810
Past Due [Member] | Notes Receivable [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	1,898		2,231
Past Due [Member] | Lease Receivables [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	946		1,579
31 to 60 Days Past Due [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	1,201		1,452
31 to 60 Days Past Due [Member] | Notes Receivable [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	945		648
31 to 60 Days Past Due [Member] | Lease Receivables [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	256		804
61 to 90 Days Past Due [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	295		1,042
61 to 90 Days Past Due [Member] | Notes Receivable [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	87		910
61 to 90 Days Past Due [Member] | Lease Receivables [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	208		132
> 90 Days Past Due [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	1,348		1,316
> 90 Days Past Due [Member] | Notes Receivable [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	866		673
> 90 Days Past Due [Member] | Lease Receivables [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	482		643
Current [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	8,690		5,806
Current [Member] | Notes Receivable [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	6,112		3,240
Current [Member] | Lease Receivables [Member]
Age of the Recorded Notes Receivable Balance Disaggregated Based on Internally Assigned CQR [Abstract]
Total	$ 2,578		$ 2,566

[1] Unguaranteed residual values of $7,176 thousand that we retained after selling the related lease receivable and initial direct costs of notes receivable of $234 thousand are excluded from amortized cost.

[2] Unguaranteed residual values of $9,453 thousand that we retained after selling the related lease receivable and initial direct costs of notes receivable of $425 thousand are excluded from amortized cost.