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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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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 + Details
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