EARNINGS (LOSS) PER SHARE - Schedule of Exchange Agreement (Details) - shares					9 Months Ended
	May 01, 2017	Jan. 31, 2017	Oct. 31, 2016	Aug. 01, 2016	Mar. 31, 2017
Class B Common Shares
Conversion of Stock [Line Items]
Class B Common Shares Retired Upon Exchange (in shares)		1,296,682	5,047,528	1,323,654
Shares Outstanding After Exchange (in shares)		88,464,859	89,761,541	94,809,069
Percentage of Combined Voting Power Class B/Class A Common Stock		64.00%	64.00%	67.00%
Class B Common Shares | Subsequent Event
Conversion of Stock [Line Items]
Class B Common Shares Retired Upon Exchange (in shares)	993,194
Shares Outstanding After Exchange (in shares)	87,298,888
Percentage of Combined Voting Power Class B/Class A Common Stock	63.00%
Class A Common Shares
Conversion of Stock [Line Items]
Shares Outstanding After Exchange (in shares)		50,701,862	50,085,904	47,365,528
Percentage of Combined Voting Power Class B/Class A Common Stock		36.00%	36.00%	33.00%
Class A Common Shares | Subsequent Event
Conversion of Stock [Line Items]
Shares Outstanding After Exchange (in shares)	51,734,785
Percentage of Combined Voting Power Class B/Class A Common Stock	37.00%
Class B common units | Exchanged for cash
Conversion of Stock [Line Items]
Class B Common Shares Retired Upon Exchange (in shares)		800,000	3,000,000		3,800,000
Class B common units | Exchanged for Class A common stock
Conversion of Stock [Line Items]
Class B Common Shares Retired Upon Exchange (in shares)		500,000	2,000,000		3,900,000