RESERVES FOR CREDIT LOSSES (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2018		Sep. 30, 2017	Sep. 30, 2018		Mar. 31, 2018
Activity in reserves for credit losses [Roll Forward]
Balance	$ 2,664		$ 5,392
Provision for credit losses	82		155
Write-offs and other	(1)		(3,184)
Balance	2,745		2,363
Reserve for credit losses [Abstract]
Ending balance	2,664		5,392	$ 2,745		$ 2,664
Accounts Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	1,538		1,279
Provision for credit losses	127		(5)
Write-offs and other	(1)		0
Balance	1,664		1,274
Reserve for credit losses [Abstract]
Ending balance	1,538		1,279	1,664		1,538
Notes Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	486	[1]	3,434
Provision for credit losses	(3)		27
Write-offs and other	0		(3,020)
Balance	483	[1]	441
Reserve for credit losses [Abstract]
Ending balance: collectively evaluated for impairment				421		424
Ending balance: individually evaluated for impairment				62		62
Ending balance	483	[1]	3,434	483	[1]	486	[1]
Minimum payments [Abstract]
Ending balance: collectively evaluated for impairment				72,523		62,930
Ending balance: individually evaluated for impairment				62		62
Ending balance				72,585		62,992
Lease-Related Receivables [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	640	[1]	679
Provision for credit losses	(42)		133
Write-offs and other	0		(164)
Balance	598	[1]	648
Reserve for credit losses [Abstract]
Ending balance: collectively evaluated for impairment				598		640
Ending balance: individually evaluated for impairment				0		0
Ending balance	$ 598	[1]	$ 679	598	[1]	640	[1]
Minimum payments [Abstract]
Ending balance: collectively evaluated for impairment				77,825		65,943
Ending balance: individually evaluated for impairment				0		0
Ending balance				$ 77,825		$ 65,943

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