Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 14.F)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Share-Based Compensation (Details 5) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Share-based compensation disclosures
Compensation cost	$ 10.0	$ 11.4	$ 13.1
Restricted stock unit awards \| 1993 Plan
Share-based compensation disclosures
Compensation cost	1.3	$ 2.8	$ 4.8
Restricted stock option cost	$ 1.2
Restricted stock option weighted average remaining life	1 year 3 months 18 days
Performance-based restricted stock unit awards \| 1993 Plan \| Minimum
Share-based compensation disclosures
Shares vesting period
Performance-based restricted stock unit awards \| 1993 Plan \| Maximum
Share-based compensation disclosures
Shares vesting period	2 years
Time-based restricted stock unit awards \| 1993 Plan
Share-based compensation disclosures
Shares vesting period	3 years