ALLOWANCE FOR CREDIT LOSSES, Activity (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Activity in reserves for credit losses [Roll Forward]      
Balance $ 3,189 $ 2,614 $ 2,664
Provision for credit losses 1,436 1,004 335
Write-offs and other (178) (429) (385)
Balance 4,447 3,189 2,614
Accounts Receivable [Member]      
Activity in reserves for credit losses [Roll Forward]      
Balance 1,781 1,579 1,538
Provision for credit losses 367 627 195
Write-offs and other (84) (425) (154)
Balance 2,064 1,781 1,579
Notes Receivable [Member]      
Activity in reserves for credit losses [Roll Forward]      
Balance 798 [1] 505 486
Provision for credit losses 503 293 250
Write-offs and other (89) 0 (231)
Balance 1,212 [1] 798 [1] 505
Lease Receivables [Member]      
Activity in reserves for credit losses [Roll Forward]      
Balance 610 [1] 530 640
Provision for credit losses 566 84 (110)
Write-offs and other (5) (4) 0
Balance $ 1,171 [1] $ 610 [1] $ 530
[1] Refer to Note 7, “Allowance for Credit Losses” for details.