EQUITY - Narrative (Details)							3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 17, 2015 USD ($) $ / shares	Dec. 03, 2015 shares	Oct. 15, 2015 USD ($)	Sep. 11, 2015 USD ($) $ / shares	Jul. 08, 2015 USD ($)	Jul. 08, 2015 USD ($)	Mar. 31, 2016 USD ($) vote $ / shares shares	Mar. 31, 2015 $ / shares	Mar. 31, 2016 USD ($) vote $ / shares shares	Mar. 31, 2015 $ / shares	Jun. 30, 2015 USD ($) $ / shares shares	Feb. 04, 2016 USD ($)	Oct. 01, 2015 USD ($)	Aug. 13, 2015 USD ($)
Class of Stock [Line Items]
Preferred stock, par value (in Dollars per share) | $ / shares							$ 0.01		$ 0.01		$ 0.01
Preferred stock, shares authorized | shares							20,000,000.0		20,000,000.0		20,000,000.0
Preferred stock, shares outstanding | shares							1,700,000		1,700,000		1,900,000
Dividends declared (in dollars per share) | $ / shares				$ 0.25			$ 0	$ 0	$ 0.25	$ 0.20
Amount of dividends				$ 90,100,000
Repurchase Program | Minimum
Class of Stock [Line Items]
Share purchase prices | $ / shares									25.51
Repurchase Program | Maximum
Class of Stock [Line Items]
Share purchase prices | $ / shares									$ 30.35
Individual intended to become executive
Class of Stock [Line Items]
Recognized compensation expense											$ 13,900,000
Related liability | shares											1,400,000
Share-based compensation						$ 100,000
Additional Paid-in Capital | Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Reduction of dividend accrual recorded in prior period									$ 400,000
Additional Paid-in Capital | Individual intended to become executive
Class of Stock [Line Items]
Reclassification of Class A Common Stock from liability to APIC					$ 13,800,000
Other Noncurrent Liabilities
Class of Stock [Line Items]
Dividends payable													$ 1,100,000
Other Noncurrent Liabilities | Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Dividends payable							$ 1,900,000		$ 1,900,000
Common Class A and B
Class of Stock [Line Items]
Amount of dividends			$ 89,000,000
Common Class A
Class of Stock [Line Items]
Common stock, par value (in Dollars per share) | $ / shares							$ 0.01		$ 0.01		$ 0.01
Number of votes per share | vote							1		1
Common stock, shares authorized | shares							800,000,000.0		800,000,000.0		800,000,000.0
Common stock, shares outstanding | shares							76,800,000		76,800,000		98,800,000
Common Class A | Repurchase Program
Class of Stock [Line Items]
Authorized repurchase amount														$ 700,000,000.0
Number of shares repurchased | shares									24,900,000
Aggregate fair value of shares repurchased									$ 700,000,000
Common Class A | Incremental Repurchase Program
Class of Stock [Line Items]
Authorized repurchase amount												$ 500,000,000.0
Common Class A | Shareholder holding more than 5% of Class A Common Stock | Stock Purchase Agreement with Shareholder Holding More than 5% of Class A Common Stock
Class of Stock [Line Items]
Number of shares repurchased | shares		1,000,000.0
Share purchase prices | $ / shares	$ 27.91
Aggregate fair value of shares repurchased	$ 27,900,000
Percentage of Class A common stock held (more than 5%)		5.00%
Common Class B
Class of Stock [Line Items]
Common stock, par value (in Dollars per share) | $ / shares							$ 0.01		$ 0.01		$ 0.01
Number of votes per share | vote							10		10
Common stock, shares authorized | shares							262,000,000.0		262,000,000.0		262,000,000.0
Common stock, shares outstanding | shares							262,000,000		262,000,000		262,000,000
Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized | shares							20,000,000.0		20,000,000.0
Series A Preferred Stock
Class of Stock [Line Items]
Number of votes per share | vote							0		0
Preferred stock, par value (in Dollars per share) | $ / shares							$ 0.01		$ 0.01
Preferred stock, shares outstanding | shares							1,700,000		1,700,000
Conversion price (in dollars per share) | $ / shares							$ 27.97		$ 27.97
Preferred stock							$ 1,100,000		$ 1,100,000
Series A Preferred Stock | Other Noncurrent Liabilities
Class of Stock [Line Items]
Preferred stock							$ 300,000		$ 300,000