RESERVES FOR CREDIT LOSSES (Details) (USD $)	12 Months Ended
	Mar. 31, 2013		Mar. 31, 2012		Mar. 31, 2011
Activity in reserves for credit losses [Roll Forward]
Balance at beginning of period	$ 5,606,000		$ 2,771,000		$ 3,585,000
Provision for bad debts, net of recoveries	(333,000)		3,213,000		97,000
Write-offs and other	(144,000)		(378,000)		(911,000)
Balance at end of period	5,129,000		5,606,000		2,771,000
Minimum lease payments: [Abstract]
Ending balance: individually evaluated for impairment	3,600,000
Total receivable	192,254,000		174,599,000
Accounts Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance at beginning of period	1,307,000		944,000		1,580,000
Provision for bad debts, net of recoveries	(19,000)		739,000		(252,000)
Write-offs and other	(141,000)		(376,000)		(384,000)
Balance at end of period	1,147,000		1,307,000		944,000
Minimum lease payments: [Abstract]
Total receivable			900,000
Notes Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance at beginning of period	2,963,000		94,000		75,000
Provision for bad debts, net of recoveries	174,000		2,869,000		19,000
Write-offs and other	0		0		0
Balance at end of period	3,137,000		2,963,000		94,000
Reserve for credit losses [Abstract]
Ending balance: collectively evaluated for impairment	310,000		298,000
Ending balance: individually evaluated for impairment	2,827,000		2,665,000
Ending balance	3,137,000		2,963,000
Minimum lease payments: [Abstract]
Ending balance: collectively evaluated for impairment	31,793,000		22,944,000
Ending balance: individually evaluated for impairment	3,237,000		4,356,000
Ending balance	35,030,000		27,300,000
Lease-Related Receivables [Member]
Activity in reserves for credit losses [Roll Forward]
Balance at beginning of period	1,336,000	[1]	1,733,000		1,930,000
Provision for bad debts, net of recoveries	(488,000)		(395,000)		330,000
Write-offs and other	(3,000)		(2,000)		(527,000)
Balance at end of period	845,000	[1]	1,336,000	[1]	1,733,000
Reserve for credit losses [Abstract]
Ending balance: collectively evaluated for impairment	747,000		1,314,000
Ending balance: individually evaluated for impairment	98,000		22,000
Ending balance	845,000		1,336,000
Minimum lease payments: [Abstract]
Ending balance: collectively evaluated for impairment	64,246,000		99,545,000
Ending balance: individually evaluated for impairment	368,000		202,000
Ending balance	64,614,000		99,747,000
Large law firm [Member]
Minimum lease payments: [Abstract]
Notes Receivable	3,400,000		4,200,000
Accounts receivable reserve			300,000
Total receivable			5,100,000
Estimated loss on receivable			2,900,000
Customer [Member]
Minimum lease payments: [Abstract]
Ending balance: individually evaluated for impairment	$ 3,400,000

[1] For details on reserve for credit losses, refer to Note 4, "Reserves for Credit Losses."