Preferred and Common Stockholder's Equity (Tables)

9 Months Ended

Mar. 31, 2018

Summary of Common Shares Issued and Outstanding

Common shares issued and outstanding

	Nine months ended		Year ended
	March 31,		June 30,
	2018		2017
Common stock issued and outstanding at July 1		68.4		69.1
Common stock issued upon exercise of options and employee stock plans		1.5		0.9
Repurchase and retirement of common stock		—		(1.6	)
Common stock issued and outstanding at end of period		69.9		68.4

Reconciliation of Denominators of Basic and Diluted Earnings Per Share Computations

The following is a reconciliation of the denominators of the basic and diluted earnings per share (“EPS”) computations:

	Three months ended				Nine months ended
	March 31,				March 31,
	2018		2017		2018		2017
Denominator:
Weighted-average shares outstanding used to compute basic EPS		69.8		68.1		69.2		68.1
Effect of dilutive shares		2.6		0.2		2.5		0.4
Weighted-average shares outstanding and dilutive securities used to compute diluted EPS		72.4		68.3		71.7		68.5

Schedule of Anti-Dilutive Options and Restricted Stock Units Excluded from EPS Computation

These potential dilutive common shares, which may be dilutive to future diluted earnings per share, are as follows:

	Three months ended				Nine months ended
	March 31,				March 31,
	2018		2017		2018		2017
Anti-dilutive options and RSU's excluded from EPS computation		—		9.2		—		7.0

Schedule of Stock Repurchases

The shares retired, aggregate common stock and additional paid-in capital reductions, and related charges to accumulated deficit for the repurchases for periods ended March 31, 2018 and 2017 were as follows:

	Three months ended				Nine months ended
	March 31,				March 31,
	2018		2017		2018		2017
Shares purchased and retired		—		—		—		1.6
Common stock and additional paid-in-capital reductions	$	—	$	—	$	—	$	14.5
Charges to retained earnings	$	—	$	—	$	—	$	17.1