Stock-Based Compensation (Tables)

9 Months Ended

Mar. 31, 2017

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

	Three Months Ended March 31,				Nine Months Ended March 31,
	2017		2016		2017		2016
	(in millions)
Included in:
Operating costs	$	2.1	$	3.7	$	8.7	$	15.5
Selling, general and administrative expenses		24.4		29.8		84.3		107.0
Total stock-based compensation expense	$	26.5	$	33.5	$	93.0	$	122.5
CII common units	$	—	$	13.6	$	10.1	$	59.5
Part A restricted stock units		17.5		12.7		57.6		32.9
Part B restricted stock units		8.6		6.9		24.3		29.3
Part C restricted stock units		0.4		0.3		1.0		0.8
Total stock-based compensation expense	$	26.5	$	33.5	$	93.0	$	122.5

Summary Of Part B RSU Issuance

	During the three months ended
	March 31, 2017		December 31, 2016		September 30, 2016
Part B RSUs granted		171,316		191,015		200,425
Maximum eligible shares of the Company's common stock		880,564		981,817		1,030,185
Grant date fair value per Part B RSU	$	27.39	$	75.56	$	47.00
Units converted to Company's common stock at vesting date		n/a		n/a		n/a

	During the three months ended
	June 30, 2016		March 31, 2016		December 31, 2015		September 30, 2015
Part B RSUs granted		312,516		284,773		282,074		272,813
Maximum eligible shares of the Company's common stock		1,606,332		1,463,733		1,449,860		1,426,812
Grant date fair value per Part B RSU	$	37.03	$	25.12	$	25.26	$	17.83
Units converted to Company's common stock at vesting date		1,078,812		475,446		40,182		—

Part A Restricted Stock Units [Member]

Summary Of Restricted Stock Units Activity

The following table summarizes the Company’s Part A RSU activity for the nine months ended March 31, 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	1,988,570		31.56
Vested	(1,475,020)		25.29
Forfeited	(290,860)		n/a
Outstanding at March 31, 2017	2,392,591	$	30.67	7.2

Part B Restricted Stock Units [Member]

Summary Of Restricted Stock Units Activity

The following table summarizes the Company’s Part B RSU activity for the nine months ended March 31, 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	562,756		50.72
Vested	(652,532)		29.46
Forfeited	(211,398)		n/a
Outstanding at March 31, 2017	559,762	$	50.72	5.8