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Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Forfeiture Rate

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Share Based Compensation Arrangement By Share Based Payment Award, Market Price

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Previously Expired Awards Reinstated, Number

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Share Based Compensation Arrangement By Share Based Payment Award Outstanding Number

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Share-based Compensation Arrangement by Share-based Payment Award, Decrease in Shares Available for Grant For Each Full Value Award

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Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Issued Per Day

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Share-based Compensation Arrangement by Share-based Payment Award, Offering Period

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Percentage employer matches of the employee's percentage contribution matched.

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Unrecognized cost of unvested share-based compensation awards.

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-Topic 718

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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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Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

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Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

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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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

The number of shares purchased on the open market during the period for issuance to employees under the plan.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Employee Benefit Plans (including Share-based Compensation) (Narratives) (Details) - USD ($) $ / shares in Units, $ in Millions					12 Months Ended			19 Months Ended
	Aug. 27, 2014	Nov. 20, 2013	Oct. 31, 2013	Dec. 02, 2005	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant					5,450,000	8,762,000		5,450,000
Shares outstanding for options and awards					10,604,000	11,732,000	9,145,000	10,604,000
Number of options granted (in shares)					2,176,000	6,347,000
Weighted average exercise price of grants in period (usd per share)					$ 3.36	$ 5.15
Total intrinsic value of options exercised					$ 0.4	$ 4.1	$ 1.1
Total fair value of options vested					$ 1.4	$ 2.9	$ 1.5
Restricted stock units assumed in acquisition					3,256,000	5,193,000	3,220,000
Acquisition date fair value (in dollars per share)					$ 2.89	$ 5.50	$ 3.49
Expense related to accelerated vesting of stock grants					$ 0.4
Unrecognized compensation costs for non-vested stock awards					$ 11.4			$ 11.4
Weighted-average grant-date fair value of options granted (in dollars per share)					$ 1.75	$ 2.36	$ 1.74
401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution per dollar contributed by employee					50.00%
Maximum employer matching contribution of employee total compensation (percent)					2.50%
Matching contributions to the Plan					$ 1.1	$ 0.8	$ 0.5
Unvested Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized (in years, months, and days)					1 year 10 months 2 days
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost for unvested stock options					$ 5.6			$ 5.6
Recognition period for compensation cost not yet recognized (in years, months, and days)					2 years 1 month 28 days
Performance Shares \| Granted in FY 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized (in years, months, and days)					1 year 10 months 28 days
Weighted-average grant-date fair value of options granted (in dollars per share)					$ 1.21
Performance Shares \| Granted in FY 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized (in years, months, and days)					2 years 6 months
Weighted-average grant-date fair value of options granted (in dollars per share)					$ 1.53
2013 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance		9,000,000
Shares subject to previously expired awards reinstated		12,709,153
Decrease in shares available for future grants for each Full Value Award awarded		1.5
Employee stock options and stock awards available for grant					5,449,673	8,762,000		5,449,673
Shares outstanding for options and awards					5,308,134			5,308,134
Shares transferred from 2005 plan to 2013 plan								3,948,781
Enterasys Networks Inc. 2013 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding for options and awards					3,405,182			3,405,182
Contractual term					7 years
2005 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant					0	0		0
Shares included in outstanding options and awards					6,425,165			6,425,165
2014 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance	12,000,000
Maximum offering period per purchase period (in months)				6 months
Maximum of total compensation permitted to acquire shares (percent)	15.00%
Maximum number of shares issued on any purchase date	1,000,000
Percent of fair market value for price per share to employees (percent)				85.00%
2014 Employee Stock Purchase Plan \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering periods (in months)				24 months
Amended 1996 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding for options and awards					134,313			134,313
1999 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance				12,000,000
Maximum of total compensation permitted to acquire shares (percent)	15.00%
Percent of fair market value for price per share to employees (percent)				85.00%
Additional authorized shares for issuance				5,000,000
Shares purchased under plan					11,933,618
Weighted-average grant-date fair value of options granted (in dollars per share)					$ 0.90	$ 1.64	$ 0.88
Non-Executive
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate (percent)					12.00%
Executive Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate (percent)					14.00%
Enterasys Networks, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted (in shares)			4,200,000
Weighted average exercise price of grants in period (usd per share)			$ 5.30
Restricted stock units assumed in acquisition			2,700,000
Acquisition date fair value (in dollars per share)			$ 5.30