CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2018	Jan. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 151,788	$ (3,115)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization, including amortization of capitalized loan costs	61,967	34,711
Depreciation and amortization from discontinued operations, including amortization of capitalized loan costs	8,526	7,749
Gain on sale of real estate, land, other investments and discontinued operations	(181,477)	(37,330)
Loss on extinguishment of debt	506	870
Share-based compensation expense	1,124	1,428
Impairment of real estate investments	256	54,153
Bad debt expense	552	234
Changes in other assets and liabilities:
Other assets	1,931	(5,665)
Accounts payable and accrued expenses	(3,189)	2,664
Net cash provided by operating activities	41,984	55,699
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from real estate deposits	38,029	1,370
Payments for real estate deposits	(131,139)	(1,370)
Increase in notes receivable	(10,191)	0
Decrease in other investments	0	50
Decrease in lender holdbacks for improvements	1,619	1,688
Increase in lender holdbacks for improvements	(944)	(646)
Proceeds from sale of discontinued operations	426,131	112,932
Proceeds from sale of real estate and other investments	59,221	17,710
Insurance proceeds received	462	275
Payments for acquisitions of real estate assets	(244,878)	0
Payments for development and re-development of real estate assets	(2,815)	(16,082)
Payments for improvements of real estate assets	(14,337)	(33,509)
Payments for improvements of real estate assets from discontinued operations	(1,046)	(1,027)
Net cash provided by investing activities	120,112	81,391
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from mortgages payable	0	84,150
Principal payments on mortgages payable	(154,561)	(242,912)
Proceeds from revolving lines of credit	302,850	234,000
Principal payments on revolving lines of credit	(292,900)	(94,500)
Proceeds from term loan	69,462	0
Proceeds from construction debt	3,252	17,041
Principal payments on construction debt	(21,689)	(49,080)
Payment on financing liability	(7,900)	0
Proceeds from noncontrolling partner – consolidated real estate entities	0	538
Payments for acquisition of noncontrolling interests – consolidated real estate entities	0	(4,938)
Repurchase of common shares	(7,135)	0
Proceeds from issuance of Series C preferred shares, net of issue costs	99,467	0
Repurchase of preferred shares	(115,017)	(28,752)
Repurchase of partnership units	(8,577)	0
Distributions paid to common shareholders	(25,292)	(47,387)
Distributions paid to preferred shareholders	(7,057)	(8,458)
Distributions paid to noncontrolling interests – Unitholders of the Operating Partnership	(3,106)	(6,332)
Distributions paid to noncontrolling interests – consolidated real estate entities	(46)	(159)
Net cash used by financing activities	(168,249)	(146,789)
NET INCREASE IN CASH AND CASH EQUIVALENTS	(6,153)	(9,699)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	28,819	66,698
CASH AND CASH EQUIVALENTS AT END OF PERIOD	22,666	56,999
SUPPLEMENTARY SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Operating partnership units converted to shares	0	548
Decrease to accounts payable included within real estate investments	(2,995)	(543)
Construction debt reclassified to mortgages payable	23,300	10,549
Increase in mortgage notes receivable	10,329	0
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest, net of amounts capitalized of $0 and $298, respectively	$ 27,313	$ 26,504