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EARNINGS PER SHARE (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2013 | Apr. 30, 2013 | Jan. 31, 2013 | Oct. 31, 2012 | Jul. 31, 2012 | Apr. 30, 2014 | Apr. 30, 2013 | Apr. 30, 2012
EARNINGS PER SHARE [Abstract] |  |  |  |  |  |  |  |  |  |  |
Ratio of units exchanged for shares |  |  |  |  |  |  |  |  | one-for-one basis |  |
Minimum holding period |  |  |  |  |  |  |  |  | 1 year |  |
NUMERATOR [Abstract] |  |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations - Investors Real Estate Trust |  |  |  |  |  |  |  |  | $ (18,508) | $ 17,929 | $ 7,357
Income from discontinued operations - Investors Real Estate Trust |  |  |  |  |  |  |  |  | 5,334 | 7,601 | 855
Net (loss) income attributable to Investors Real Estate Trust | (28,542) | 3,503 | 8,787 | 3,078 | 10,015 | 5,324 | 8,512 | 1,679 | (13,174) | 25,530 | 8,212
Dividends to preferred shareholders |  |  |  |  |  |  |  |  | (11,514) | (9,229) | (2,372)
Numerator for basic earnings per share - net (loss) income available to common shareholders | (31,420) | 624 | 5,909 | 199 | 7,136 | 2,445 | 5,634 | 1,086 | (24,688) | 16,301 | 5,840
Noncontrolling interests - Operating Partnership |  |  |  |  |  |  |  |  | (4,676) | 3,633 | 1,359
Numerator for diluted earnings per share |  |  |  |  |  |  |  |  | $ (29,364) | $ 19,934 | $ 7,199
DENOMINATOR [Abstract] |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per share weighted average shares (in shares) |  |  |  |  |  |  |  |  | 105,331 | 93,344 | 83,557
Effect of convertible operating partnership units (in shares) |  |  |  |  |  |  |  |  | 21,697 | 21,191 | 19,875
Denominator for diluted earnings per share (in shares) |  |  |  |  |  |  |  |  | 127,028 | 114,535 | 103,432
(Loss) earnings per common share from continuing operations - Investors Real Estate Trust - basic and diluted |  |  |  |  |  |  |  |  | $ (0.28) | $ 0.09 | $ 0.06
Earnings (loss) per common share from discontinued operations - Investors Real Estate Trust - basic and diluted (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.05 | $ 0.08 | $ 0.01
NET (LOSS) INCOME PER COMMON SHARE - BASIC & DILUTED (in dollars per share) | $ (0.29) | $ 0 | $ 0.06 | $ 0 | $ 0.07 | $ 0.03 | $ 0.06 | $ 0.01 | $ (0.23) | $ 0.17 | $ 0.07

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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References No definition available. + Details
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- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4613673-111683 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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