STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Jun. 30, 2019

Schedule of Employee Service Share-Based Compensation Allocation of Recognized Period Costs

The following tables summarize the Company’s stock-based compensation expense for liability and equity classified awards included in the consolidated statements of operations:

	Year Ended June 30,
	2019		2018		2017
	(in millions)
Included in:
Operating costs	$	11.3	$	9.9	$	11.3
Selling, general and administrative expenses		98.0		86.8		102.8
Total stock-based compensation expense	$	109.3	$	96.7	$	114.1
CII common and preferred units	$	—	$	—	$	10.1
Part A restricted stock units		93.8		82.3		76.5
Part B restricted stock units		13.0		12.4		26.0
Part C restricted stock units		2.5		2.0		1.5
Total stock-based compensation expense	$	109.3	$	96.7	$	114.1

Summary of Part B RSU Issuance

	During the Three Months Ended
	June 30, 2019		March 31, 2019		December 31, 2018		September 30, 2018
Part B RSUs granted		75,370		98,342		61,123		58,418
Maximum eligible shares of the Company's common stock		633,108		826,073		513,433		403,084
Average grant date fair value per Part B RSU	$	63.67	$	52.81	$	22.43	$	64.41
Units converted to Company's common stock at vesting date		n/a		n/a		n/a		—

	During the Three Months Ended
	June 30, 2018		March 31, 2018		December 31, 2017		September 30, 2017
Part B RSUs granted		78,123		77,218		82,556		163,960
Maximum eligible shares of the Company's common stock		539,049		532,804		569,636		590,256
Average grant date fair value per Part B RSU	$	74.44	$	52.47	$	45.10	$	19.06
Units converted to Company's common stock at vesting date		—		—		—		54,671

Part A restricted stock units

Summary of Restricted Stock Units Activity

The following table summarizes the Company’s Part A RSU activity for the years ended June 2019, 2018 and 2017:

	Number of Part A RSUs	Weighted average grant-date fair value per share		Weighted average remaining contractual term in months
Outstanding at July 1, 2016	2,169,901	$	26.04	7.9
Granted	2,678,503		31.64
Vested	(2,080,685)		26.03
Forfeited	(403,333)		n/a
Outstanding at July 1, 2017	2,364,386	$	31.63	7.1
Granted	2,664,538		35.08
Vested	(2,459,040)		34.02
Forfeited	(323,389)		n/a
Outstanding at July 1, 2018	2,246,495	$	35.08	6.4
Granted	3,216,786		29.94
Vested	(2,707,430)		33.93
Forfeited	(431,455)		n/a
Outstanding at June 30, 2019	2,324,396	$	28.49	6.6

Part B restricted stock units

Summary of Restricted Stock Units Activity

The following table summarizes the Company’s Part B RSU activity for the years ended June 2019, 2018 and 2017:

	Number of Part B RSUs	Weighted average grant-date fair value per unit		Weighted average remaining contractual term in months
Outstanding at July 1, 2016	860,936	$	29.50	6.2
Granted	715,564		45.56
Vested	(793,478)		32.58
Forfeited	(371,049)		n/a
Outstanding at July 1, 2017	411,973	$	42.86	6.1
Granted	401,857		41.60
Vested	(468,698)		39.01
Forfeited	(159,357)		n/a
Outstanding at July 1, 2018	185,775	$	57.19	8.9
Granted	293,253		51.58
Vested	(184,633)		57.08
Forfeited	(5,141)		n/a
Outstanding at June 30, 2019	289,254	$	49.73	8.0