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EARNINGS PER SHARE (Details) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Jul. 31, 2018 USD ($) $ / shares shares | Jul. 31, 2017 USD ($) $ / shares shares
Earnings Per Share [Abstract] |  |
Ratio of units exchanged for shares | 1 |
NUMERATOR |  |
Income (loss) from continuing operations – controlling interests | $ 2,405 | $ (13,651)
Income from discontinued operations – controlling interests | 511 | 2,387
Net income (loss) attributable to controlling interests | 2,916 | (11,264)
Dividends to preferred shareholders | (1,705) | (2,286)
Redemption of preferred shares | 0 | 0
NET INCOME (LOSS) AVAILABLE TO COMMON SHAREHOLDERS | 1,211 | (13,550)
Noncontrolling interests – Operating Partnership | 135 | (1,644)
Numerator for diluted earnings per share | $ 1,346 | $ (15,194)
DENOMINATOR |  |
Denominator for basic earnings per share weighted average shares (in shares) | shares | 119,245 | 120,421
Effect of redeemable operating partnership units (in shares) | shares | 14,026 | 15,128
Denominator for diluted earnings per share (in shares) | shares | 133,271 | 135,549
Earnings (loss) per common share from continuing operations – basic and diluted (in dollars per share) | $ / shares | $ 0.01 | $ (0.13)
Earnings per common share from discontinued operations – basic and diluted (in dollars per share) | $ / shares | 0.00 | 0.02
NET EARNINGS (LOSS) PER COMMON SHARE – BASIC & DILUTED (in dollars per share) | $ / shares | $ 0.01 | $ (0.11)
Performance Shares [Member] |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Antidilutive securities excluded (in shares) | shares | 248 | 115

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