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DISCONTINUED OPERATIONS, Effect on Net Income from Properties Classified as Discontinued Operations (Details) (Imported) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2016 USD ($) | Jan. 31, 2016 property | Oct. 31, 2015 USD ($) | Oct. 31, 2016 USD ($) | Oct. 31, 2015 USD ($)
REVENUE [Abstract] |  |  |  |  |
Real estate rentals | $ 45,859 |  | $ 41,868 | $ 90,844 | $ 82,618
Tenant reimbursement | 4,750 |  | 4,478 | 9,376 | 8,773
TOTAL REVENUE | 50,609 |  | 46,346 | 100,220 | 91,391
EXPENSES [Abstract] |  |  |  |  |
Property operating expenses, excluding real estate taxes | 15,814 |  | 15,052 | 31,871 | 28,540
Depreciation and amortization | 13,531 |  | 12,405 | 27,798 | 23,622
Impairment of real estate investments |  |  | 1,873 | 54,153 | 3,158
TOTAL EXPENSES | 38,626 |  | 38,366 | 132,181 | 72,050
Interest expense | (10,626) |  | (8,741) | (20,990) | (16,555)
Gain on extinguishment of debt |  |  | (106) |  | (106)
Other income | 37 |  | 100 | 510 | 151
Gain on sale of discontinued operations |  |  |  | 15,358 | 23,733
INCOME FROM DISCONTINUED OPERATIONS | 10,399 |  | 16,879 | 14,110 | 17,627
Discontinued Operations, Disposed of by Sale [Member] |  |  |  |  |
REVENUE [Abstract] |  |  |  |  |
Real estate rentals | 4,992 |  | 9,703 | 10,002 | 28,143
Tenant reimbursement | 112 |  | 1,486 | 226 | 7,751
TRS senior housing revenue | 916 |  | 965 | 1,789 | 2,003
TOTAL REVENUE | 6,020 |  | 12,154 | 12,017 | 37,897
EXPENSES [Abstract] |  |  |  |  |
Property operating expenses, excluding real estate taxes |  |  | 2,668 |  | 8,768
Real estate taxes | (112) |  | 1,269 |  | 4,789
Depreciation and amortization |  |  | 2,498 | 16 | 9,587
Impairment of real estate investments |  |  |  |  | 440
TRS senior housing expenses | 769 |  | 812 | 1,553 | 1,581
TOTAL EXPENSES | 657 |  | 7,247 | 1,569 | 25,165
Operating income | 5,363 |  | 4,907 | 10,448 | 12,732
Interest expense | (1,395) |  | (5,021) | (2,769) | (12,168)
Gain on extinguishment of debt | (72) |  | (7,120) | (72) | (7,120)
Other income |  |  | 203 |  | 273
Income from discontinued operations before gain on sale | 3,896 |  | (7,031) | 7,607 | (6,283)
Gain on sale of discontinued operations | 6,503 |  | 23,910 | 6,503 | 23,910
INCOME FROM DISCONTINUED OPERATIONS | 10,399 |  | 16,879 | 14,110 | 17,627
Default interest | $ 1,600 |  |  | $ 3,100 |
Non-recourse loan |  |  | $ 122,600 |  | $ 122,600
Number of loan properties | property |  | 9 |  |  |

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