CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (140)	$ (28,304)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, including amortization of capitalized loan costs	50,244	28,548
Depreciation and amortization from discontinued operations, including amortization of capitalized loan costs	9	64
Gain on sale of real estate, land, other investments and discontinued operations	(17,686)	(15,358)
Loss on extinguishment of debt	128	72
Share-based compensation expense	751	865
Impairment of real estate investments	256	54,153
Bad debt expense	498	371
Changes in other assets and liabilities:
Receivable arising from straight-lining of rents	(128)	(487)
Accounts receivable	(195)	(588)
Prepaid and other assets	(864)	(541)
Tax, insurance and other escrow	(187)	(200)
Deferred charges and leasing costs	(998)	(851)
Accounts payable, accrued expenses and other liabilities	(4,756)	(2,357)
Net cash provided by operating activities	26,932	35,387
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from real estate deposits	38,029
Payments for real estate deposits	(14,370)	(1,370)
Increase in notes receivable	(6,126)
Decrease in other investments		50
Decrease in lender holdbacks for improvements	1,444	1,925
Increase in lender holdbacks for improvements	(513)	(614)
Proceeds from sale of discontinued operations	35,775	43,896
Proceeds from sale of real estate and other investments	18,039	13,875
Insurance proceeds received	530	481
Payments for acquisitions of real estate assets	(154,122)
Payments for development and re-development of real estate assets	(2,817)	(10,897)
Payments for improvements of real estate assets	(10,981)	(23,641)
Net cash (used) provided by investing activities	(95,112)	23,705
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from mortgages payable		1,113
Principal payments on mortgages payable	(51,733)	(53,208)
Proceeds from revolving lines of credit	293,350	30,000
Principal payments on revolving lines of credit	(102,900)
Proceeds from construction debt	3,124	11,174
Payment on financing liability	(7,900)
Proceeds from noncontrolling partner - consolidated real estate entities		500
Payments for acquisition of noncontrolling interests - consolidated real estate entities		(4,938)
Repurchase of common shares	(6,253)
Proceeds from issuance of Series C preferred shares, net of issue costs	99,467
Repurchase of Series B preferred shares	(115,005)
Repurchase of partnership units	(5,982)
Distributions paid to common shareholders	(16,881)	(31,556)
Distributions paid to preferred shareholders	(5,333)	(5,757)
Distributions paid to noncontrolling interests - Unitholders of the Operating Partnership	(2,089)	(4,234)
Distributions paid to noncontrolling interests - consolidated real estate entities	(40)	(155)
Net cash provided (used) by financing activities	81,825	(57,061)
NET INCREASE IN CASH AND CASH EQUIVALENTS	13,645	2,031
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	28,819	66,698
CASH AND CASH EQUIVALENTS AT END OF PERIOD	42,464	68,729
SUPPLEMENTARY SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Operating partnership units converted to shares		134
(Decrease) increase to accounts payable included within real estate investments	(2,106)	3,188
Construction debt reclassified to mortgages payable	23,300	10,549
Increase in mortgage notes receivable	10,329
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest, net of amounts capitalized of $0 and $298, respectively	$ 17,122	$ 17,457