RESERVES FOR CREDIT LOSSES, CQR (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Non-Recourse Notes Payable	$ (250,000)
Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	647	$ 490
Current	257	505
Unbilled Minimum Lease Payments	66,334	65,420
Total Minimum Lease Payments	67,238	66,415
Unearned Income	(4,217)	(4,101)
Non-Recourse Notes Payable	(16,741)	(25,958)
Net Credit Exposure	46,280	36,356
Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	3,829	1,472
Current	236	2,831
Unbilled Minimum Lease Payments	57,490	55,640
Total Minimum Lease Payments	61,555	59,943
Non-Recourse Notes Payable	(33,653)	(29,920)
Net Credit Exposure	27,902	30,023
31 to 60 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	134	85
31 to 60 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	6	395
61 to 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	83	253
61 to 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	11	260
Greater than 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	430	152
Greater than 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 3,812	817
High CQR [Member]
Financing Receivable, Recorded Investment [Line Items]
Losses on net credit exposure, lower limit	0.00%
Losses on net credit exposure, upper limit	5.00%
High CQR [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 400	388
Current	193	430
Unbilled Minimum Lease Payments	47,143	41,213
Total Minimum Lease Payments	47,736	42,031
Unearned Income	(2,744)	(2,340)
Non-Recourse Notes Payable	(10,664)	(16,561)
Net Credit Exposure	34,328	23,130
High CQR [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	179	759
Current	34	2,455
Unbilled Minimum Lease Payments	44,843	35,996
Total Minimum Lease Payments	45,056	39,210
Non-Recourse Notes Payable	(25,890)	(18,255)
Net Credit Exposure	19,166	20,955
High CQR [Member] | 31 to 60 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	131	70
High CQR [Member] | 31 to 60 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	0	338
High CQR [Member] | 61 to 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	83	185
High CQR [Member] | 61 to 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	5	260
High CQR [Member] | Greater than 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	186	133
High CQR [Member] | Greater than 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 174	161
Average CQR [Member]
Financing Receivable, Recorded Investment [Line Items]
Losses on net credit exposure, lower limit	2.00%
Losses on net credit exposure, upper limit	15.00%
Average CQR [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 105	102
Current	64	75
Unbilled Minimum Lease Payments	19,191	24,047
Total Minimum Lease Payments	19,360	24,224
Unearned Income	(1,454)	(1,742)
Non-Recourse Notes Payable	(6,077)	(9,397)
Net Credit Exposure	11,829	13,085
Average CQR [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	130	57
Current	202	376
Unbilled Minimum Lease Payments	12,647	16,882
Total Minimum Lease Payments	12,979	17,315
Non-Recourse Notes Payable	(7,763)	(11,665)
Net Credit Exposure	5,216	5,650
Average CQR [Member] | 31 to 60 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	3	15
Average CQR [Member] | 31 to 60 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	6	57
Average CQR [Member] | 61 to 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	0	68
Average CQR [Member] | 61 to 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	6	0
Average CQR [Member] | Greater than 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	102	19
Average CQR [Member] | Greater than 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 118	0
Low CQR [Member]
Financing Receivable, Recorded Investment [Line Items]
Losses on net credit exposure, lower limit	15.00%
Losses on net credit exposure, upper limit	100.00%
Low CQR [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 142	0
Current	0	0
Unbilled Minimum Lease Payments	0	160
Total Minimum Lease Payments	142	160
Unearned Income	(19)	(19)
Non-Recourse Notes Payable	0	0
Net Credit Exposure	123	141
Low CQR [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	3,520	656
Current	0	0
Unbilled Minimum Lease Payments	0	2,762
Total Minimum Lease Payments	3,520	3,418
Non-Recourse Notes Payable	0	0
Net Credit Exposure	3,520	3,418
Low CQR [Member] | 31 to 60 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	0	0
Low CQR [Member] | 31 to 60 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	0	0
Low CQR [Member] | 61 to 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	0	0
Low CQR [Member] | 61 to 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	0	0
Low CQR [Member] | Greater than 90 Days Past Due [Member] | Investment in Direct Financing and Sales-type Leases that are Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	142	0
Low CQR [Member] | Greater than 90 Days Past Due [Member] | Notes Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Past Due	$ 3,520	$ 656