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DISCONTINUED OPERATIONS (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2017 USD ($) | Jan. 31, 2017 USD ($) | Oct. 31, 2016 USD ($) | Jul. 31, 2016 USD ($) | Apr. 30, 2016 USD ($) | Jan. 31, 2016 USD ($) | Oct. 31, 2015 USD ($) | Jul. 31, 2015 USD ($) | Apr. 30, 2017 USD ($) property | Apr. 30, 2016 USD ($) loan property | Apr. 30, 2015 USD ($) property
REVENUE |  |  |  |  |  |  |  |  |  |  |
Real estate rentals |  |  |  |  |  |  |  |  | $ 186,837,000 | $ 170,698,000 | $ 159,969,000
Tenant reimbursement |  |  |  |  |  |  |  |  | 18,901,000 | 17,622,000 | 19,352,000
TOTAL REVENUE | $ 54,344,000 | $ 51,174,000 | $ 50,609,000 | $ 49,611,000 | $ 48,523,000 | $ 48,406,000 | $ 46,346,000 | $ 45,045,000 | 205,738,000 | 188,320,000 | 179,321,000
EXPENSES |  |  |  |  |  |  |  |  |  |  |
Property operating expenses, excluding real estate taxes |  |  |  |  |  |  |  |  | 64,768,000 | 58,859,000 | 53,535,000
Real estate taxes |  |  |  |  |  |  |  |  | 23,587,000 | 20,241,000 | 19,602,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 55,009,000 | 49,832,000 | 42,784,000
Impairment of real estate investments |  |  |  |  |  |  |  |  | 57,028,000 | 5,543,000 | 4,663,000
Other expenses |  |  |  |  |  |  |  |  | 3,796,000 | 2,231,000 | 1,647,000
Other property expenses |  |  |  |  |  |  |  |  | 3,276,000 | 830,000 | 362,000
TOTAL EXPENSES |  |  |  |  |  |  |  |  | 219,539,000 | 148,803,000 | 134,417,000
Operating income (loss) |  |  |  |  |  |  |  |  | (13,801,000) | 39,517,000 | 44,904,000
Interest expense |  |  |  |  |  |  |  |  | (41,127,000) | (35,768,000) | (34,447,000)
Gain/loss on extinguishment of debt |  |  |  |  |  |  |  |  | (3,099,000) | (106,000) |
Interest income |  |  |  |  |  |  |  |  | 369,000 | 81,000 | 62,000
Other income |  |  |  |  |  |  |  |  | 807,000 | 317,000 | 718,000
Gain on sale of discontinued operations |  |  |  |  |  |  |  |  | 74,847,000 | 33,423,000 | 6,093,000
INCOME FROM DISCONTINUED OPERATIONS |  |  |  |  |  |  |  |  | 68,675,000 | 59,497,000 | 11,354,000
Property Sale Data |  |  |  |  |  |  |  |  |  |  |
Gain on sale of discontinued operations |  |  |  |  |  |  |  |  | $ 74,847,000 | 33,423,000 | $ 6,093,000
Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties classified as discontinued operations | property |  |  |  |  |  |  |  |  | 0 |  | 0
REVENUE |  |  |  |  |  |  |  |  |  |  |
Real estate rentals |  |  |  |  |  |  |  |  | $ 16,405,000 | 43,544,000 | $ 75,883,000
Tenant reimbursement |  |  |  |  |  |  |  |  | 226,000 | 8,684,000 | 24,466,000
TRS senior housing revenue |  |  |  |  |  |  |  |  | 3,218,000 | 3,955,000 | 3,520,000
TOTAL REVENUE |  |  |  |  |  |  |  |  | 19,849,000 | 56,183,000 | 103,869,000
EXPENSES |  |  |  |  |  |  |  |  |  |  |
Property operating expenses, excluding real estate taxes |  |  |  |  |  |  |  |  | 75,000 | 10,252,000 | 23,517,000
Real estate taxes |  |  |  |  |  |  |  |  |  | 5,777,000 | 14,343,000
Depreciation and amortization |  |  |  |  |  |  |  |  | 16,000 | 14,166,000 | 27,823,000
Impairment of real estate investments |  |  |  |  |  |  |  |  |  | 440,000 | 1,442,000
TRS senior housing expenses |  |  |  |  |  |  |  |  | 3,113,000 | 3,366,000 | 2,997,000
Other expenses |  |  |  |  |  |  |  |  |  |  | 1,000
TOTAL EXPENSES |  |  |  |  |  |  |  |  | 3,204,000 | 34,001,000 | 70,123,000
Operating income (loss) |  |  |  |  |  |  |  |  | 16,645,000 | 22,182,000 | 33,746,000
Interest expense |  |  |  |  |  |  |  |  | (4,815,000) | (18,406,000) | (24,573,000)
Gain/loss on extinguishment of debt |  |  |  |  |  |  |  |  | (1,790,000) | 29,336,000 |
Interest income |  |  |  |  |  |  |  |  | 2,176,000 | 2,176,000 | 2,176,000
Other income |  |  |  |  |  |  |  |  | 313,000 | 427,000 | 5,000
Income from discontinued operations before gain on sale |  |  |  |  |  |  |  |  | 12,529,000 | 35,715,000 | 11,354,000
Gain on sale of discontinued operations |  |  |  |  |  |  |  |  | 56,146,000 | 23,782,000 |
INCOME FROM DISCONTINUED OPERATIONS |  |  |  |  |  |  |  |  | 68,675,000 | 59,497,000 | 11,354,000
Default interest |  |  |  |  |  |  |  |  |  | 4,700,000 | 528,000
Non-recourse loan | $ 122,600,000 |  |  |  | $ 122,600,000 |  |  |  | 122,600,000 | 122,600,000 | 122,600,000
Gain on extinguishment of debt from transfer of ownership |  |  |  |  |  |  |  |  |  | $ 36,500,000 |
Number of loan properties | loan |  |  |  |  |  |  |  |  |  | 9 |
Property Sale Data |  |  |  |  |  |  |  |  |  |  |
Sales price |  |  |  |  |  |  |  |  | 239,436,000 | $ 373,460,000 |
Net book value and sales costs |  |  |  |  |  |  |  |  | (183,290,000) | (349,678,000) |
Gain on sale of discontinued operations |  |  |  |  |  |  |  |  | 56,146,000 | 23,782,000 |
Discontinued Operations [Member] | Commercial Healthcare [Member] |  |  |  |  |  |  |  |  |  |  |
EXPENSES |  |  |  |  |  |  |  |  |  |  |
INCOME FROM DISCONTINUED OPERATIONS |  |  |  |  |  |  |  |  | 68,362,000 | 8,101,000 | 9,008,000
Discontinued Operations [Member] | All Other [Member] |  |  |  |  |  |  |  |  |  |  |
EXPENSES |  |  |  |  |  |  |  |  |  |  |
INCOME FROM DISCONTINUED OPERATIONS |  |  |  |  |  |  |  |  | $ 313,000 | $ 51,396,000 | $ 2,346,000
Discontinued Operations, Disposed of by Sale [Member] | Office [Member] |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties classified as discontinued operations | property |  |  |  |  |  |  |  |  |  | 48 |
Discontinued Operations, Disposed of by Sale [Member] | Commercial Healthcare [Member] |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties classified as discontinued operations | property |  |  |  |  |  |  |  |  |  | 1 |
Discontinued Operations, Disposed of by Sale [Member] | Retail [Member] |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties classified as discontinued operations | property |  |  |  |  |  |  |  |  |  | 17 |
Discontinued Operations, Disposed of by Sale [Member] | Senior Housing properties [Member] |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties disposed | property |  |  |  |  |  |  |  |  | 32 |  |
Discontinued Operations, Held-for-sale [Member] | Senior Housing properties [Member] |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of properties classified as held for sale | property |  |  |  |  |  |  |  |  |  | 34 |

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- Definition Amount of general expenses not normally included in Other Operating Costs and Expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.6) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Other real estate revenue not otherwise specified in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The aggregate revenue from real estate operations during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35301-107843 + Details
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- Definition In accordance with the provisions of their lease agreement, this element represents allowable charges due a landlord from its tenant. In retail store and office building leases, for example, tenant reimbursements may cover items such as taxes, utilities, and common area expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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