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Share-Based Compensation (Tables)

6 Months Ended

Dec. 31, 2017

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Share-Based Compensation and Related Tax Benefit Recognized in Condensed Consolidated Statements of Income

Share-based compensation and the related tax benefit recognized in our condensed consolidated statements of income were as follows (in millions):

		Three Months Ended								Six Months Ended
		December 31,								December 31,
		2017				2016				2017				2016
Cost of revenue		$	0.7			$	0.6			$	1.4			$	1.1
Research and development			9.8				8.5				18.9				16.3
Selling, general, and administrative			7.3				6.5				14.0				12.8
Total		$	17.8			$	15.6			$	34.3			$	30.2
Income tax benefit on share-based compensation		$	(1.3	)		$	4.3			$	2.7			$	8.0

Balance of Outstanding and Exercisable Stock Options

Stock option activity, including stock options granted, exercised, and forfeited, weighted average exercise prices for stock options outstanding and exercisable, and the aggregate intrinsic value were as follows:

		Stock				Weighted				Aggregate
		Option				Average				Intrinsic
		Awards				Exercise				Value
		Outstanding				Price				(in millions)
Balance as of June 30, 2017			2,490,168			$	49.20
Granted			61,825				45.32
Exercised			(85,126	)			27.85
Forfeited			(79,653	)			67.02
Balance as of December 31, 2017			2,387,214				49.26			$	14.0
Exercisable at December 31, 2017			1,943,715				46.64			$	14.0

Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP

Shares purchased, weighted average purchase price, cash received, and the aggregate intrinsic value for employee stock purchase plan purchases during the six-month period ended December 31, 2017 were as follows (in millions, except for shares purchased and weighted average price):

Shares purchased			210,798
Weighted average purchase price		$	32.17
Cash received		$	6.8
Aggregate intrinsic value		$	1.2

Deferred stock units outstanding [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Balance and Aggregate Intrinsic Value of Stock Units

DSU activity, including DSUs granted, delivered, and forfeited, and the balance and aggregate intrinsic value of DSUs were as follows:

						Aggregate
		DSU				Intrinsic
		Awards				Value
		Outstanding				(in millions)
Balance as of June 30, 2017			1,320,798
Granted			1,230,511
Delivered			(450,099	)
Forfeited			(101,645	)
Balance as of December 31, 2017			1,999,565			$	79.9

Market stock units outstanding [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Balance and Aggregate Intrinsic Value of Stock Units

During the six months ended December 31, 2017, MSU activity, including MSUs granted, delivered, and forfeited, and the balance and aggregate intrinsic value of MSUs as of December 31, 2017 was as follows:

						Aggregate
		MSU				Intrinsic
		Awards				Value
		Outstanding				(in millions)
Balance as of June 30, 2017			158,596
Granted			300,071
Performance adjustment			(68,003	)
Delivered			-
Forfeited			(8,733	)
Balance as of December 31, 2017			381,931			$	15.3

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