CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2018	Jul. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 3,716	$ (13,279)
Other comprehensive income:
Unrealized gain from derivative instrument	208	0
Loss on derivative instrument reclassified into earnings	29	0
Total comprehensive income (loss)	3,953	(13,279)
Net comprehensive (income) loss attributable to noncontrolling interests – Operating Partnership	(157)	1,644
Net (income) loss attributable to noncontrolling interests – consolidated real estate entities	(665)	371
Comprehensive income (loss) attributable to controlling interests	$ 3,131	$ (11,264)