RESERVES FOR CREDIT LOSSES, Activity (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2019		Mar. 31, 2018
Activity in reserves for credit losses [Roll Forward]
Balance		$ 2,664		$ 5,392
Provision for credit losses		335		462
Write-offs and other		(385)		(3,190)
Balance		2,614		2,664
Accounts Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance		1,538		1,279
Provision for credit losses		195		264
Write-offs and other		(154)		(5)
Balance		1,579		1,538
Notes Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance		486	[1]	3,434
Provision for credit losses		250		73
Write-offs and other		(231)		(3,021)
Balance	[1]	505		486
Lease-Related Receivables [Member]
Activity in reserves for credit losses [Roll Forward]
Balance		640	[1]	679
Provision for credit losses		(110)		125
Write-offs and other		0		(164)
Balance	[1]	$ 530		$ 640

[1] For details on reserve for credit losses, refer to Note 6, "Reserves for Credit Losses."