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CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands | PREFERRED SHARES [Member] | COMMON SHARES [Member] | ACCUMULATED DISTRIBUTIONS IN EXCESS OF NET INCOME [Member] | NONCONTROLLING INTERESTS [Member] | Total | Preferred Class A [Member] PREFERRED SHARES [Member] | Preferred Class A [Member] ACCUMULATED DISTRIBUTIONS IN EXCESS OF NET INCOME [Member] | Preferred Class A [Member] | Preferred Class B [Member] ACCUMULATED DISTRIBUTIONS IN EXCESS OF NET INCOME [Member] | Preferred Class B [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Apr. 30, 2010 |  | $ 583,618 | $ (201,412) | $ 145,592 | $ 555,115 | $ 27,317 |  |  |  |
Balance, shares (in shares) at Apr. 30, 2010 | 1,150 | 75,805 |  |  |  |  |  |  |  |
Net income attributable to Investors Real Estate Trust and nonredeemable noncontrolling interests |  |  | 20,082 | 4,282 | 24,364 |  |  |  |  |
Distributions - common shares and units |  |  | (53,861) | (13,803) | (67,664) |  |  |  |  |
Distributions - preferred shares |  |  | (2,372) |  | (2,372) |  |  |  |  |
Distribution reinvestment and share purchase plan |  | 14,548 |  |  | 14,548 |  |  |  |  |
Distribution reinvestment and share purchase plan (in shares) |  | 1,706 |  |  |  |  |  |  |  |
Shares issued |  | 16,676 |  |  | 16,676 |  |  |  |  |
Shares issued, shares (in shares) |  | 2,004 |  |  |  |  |  |  |  |
Partnership units issued |  |  |  | 4,996 | 4,996 |  |  |  |  |
Redemption of units for common shares |  | 6,905 |  | (6,905) | 0 |  |  |  |  |
Redemption of units for common shares, shares (in shares) |  | 1,009 |  |  |  |  |  |  |  |
Adjustments to redeemable noncontrolling interests |  | 370 |  |  | 370 |  |  |  |  |
Other |  | (181) |  | (1,562) | (1,743) |  |  |  |  |
Other, shares (in shares) |  | (1) |  |  |  |  |  |  |  |
Balance at Apr. 30, 2011 | 27,317 | 621,936 | (237,563) | 132,600 | 544,290 |  |  |  |  |
Balance, shares (in shares) at Apr. 30, 2011 | 1,150 | 80,523 |  |  |  |  |  |  |  |
Net income attributable to Investors Real Estate Trust and nonredeemable noncontrolling interests |  |  | 8,212 | 1,482 | 9,694 |  |  |  |  |
Distributions - common shares and units |  |  | (46,654) | (11,102) | (57,756) |  |  |  |  |
Distributions - preferred shares |  |  | (2,372) |  | (2,372) |  |  |  |  |
Distribution reinvestment and share purchase plan |  | 34,345 |  |  | 34,345 |  |  |  |  |
Distribution reinvestment and share purchase plan (in shares) |  | 4,796 |  |  |  |  |  |  |  |
Shares issued |  | 24,870 |  |  | 24,870 |  |  |  |  |
Shares issued, shares (in shares) |  | 3,398 |  |  |  |  |  |  |  |
Partnership units issued |  |  |  | 8,055 | 8,055 |  |  |  |  |
Redemption of units for common shares |  | 3,454 |  | (3,454) | 0 |  |  |  |  |
Redemption of units for common shares, shares (in shares) |  | 759 |  |  |  |  |  |  |  |
Other |  | (556) |  | 4,693 | 4,137 |  |  |  |  |
Other, shares (in shares) |  | (2) |  |  |  |  |  |  |  |
Balance at Apr. 30, 2012 | 27,317 | 684,049 | (278,377) | 132,274 | 565,263 |  |  |  |  |
Balance, shares (in shares) at Apr. 30, 2012 | 1,150 | 89,474 |  |  |  |  |  |  |  |
Net income attributable to Investors Real Estate Trust and nonredeemable noncontrolling interests |  |  | 25,530 | 4,442 | 29,972 |  |  |  |  |
Distributions - common shares and units |  |  | (48,265) | (10,985) | (59,250) |  |  |  |  |
Distributions - preferred shares |  |  |  |  |  |  | (2,372) | (2,372) | (6,857) | (6,857)
Distribution reinvestment and share purchase plan |  | 43,123 |  |  | 43,123 |  |  |  |  |
Distribution reinvestment and share purchase plan (in shares) |  | 5,290 |  |  |  |  |  |  |  |
Shares issued |  | 55,846 |  |  | 55,846 |  |  |  |  |
Shares issued, shares (in shares) |  | 6,409 |  |  |  |  |  |  |  |
Series B preferred shares issued | 111,357 |  |  |  | 111,357 |  |  |  |  |
Series B preferred shares issued, in shares | 4,600 |  |  |  |  |  |  |  |  |
Partnership units issued |  |  |  | 12,632 | 12,632 |  |  |  |  |
Redemption of units for common shares |  | 1,551 |  | (1,551) | 0 |  |  |  |  |
Redemption of units for common shares, shares (in shares) |  | 317 |  |  |  |  |  |  |  |
Contributions from noncontrolling interests - consolidated real estate entities |  |  |  | 12,415 | 12,415 |  |  |  |  |
Other |  | (115) |  | (633) | (748) |  |  |  |  |
Other, shares (in shares) |  | (2) |  |  |  |  |  |  |  |
Balance at Apr. 30, 2013 | $ 138,674 | $ 784,454 | $ (310,341) | $ 148,594 | $ 761,381 |  |  |  |  |
Balance, shares (in shares) at Apr. 30, 2013 | 5,750 | 101,488 |  |  |  |  |  |  |  |

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