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ORGANIZATION AND BASIS OF PRESENTATION - Basis of Presentation (Narrative) (Details) - shares				9 Months Ended	12 Months Ended
	Jan. 31, 2017	Oct. 31, 2016	Aug. 01, 2016	Mar. 31, 2017	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General partner interest (as a percent)				36.00%	32.00%
Limited partners ownership interest (as a percent)				64.00%	68.00%
Class B common shares
Noncontrolling Interest [Line Items]
Class B common units and associated Class B common shares exchanged (in shares)	1,296,682	5,047,528	1,323,654
Shares retired (in shares)				7,700,000
Exchanged for Class A common stock | Class B common units
Noncontrolling Interest [Line Items]
Class B common units and associated Class B common shares exchanged (in shares)	500,000	2,000,000		3,900,000
Shares retired (in shares)				3,900,000
Exchanged for cash | Class B common units
Noncontrolling Interest [Line Items]
Class B common units and associated Class B common shares exchanged (in shares)	800,000	3,000,000		3,800,000
Shares retired (in shares)				3,800,000

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-Publisher FASB
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The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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