Defined contribution plan additional annual contribution per employee over age of fifty amount.

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- Definition

Employee Stock Ownership Plan (ESOP), plan description, maximum offering period.

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No definition available.

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Share based compensation arrangement by share based payment award average adjusted closing stock price.

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award award vesting earnings per share trigger.

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award award vesting stock price trigger.

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No definition available.

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Share based compensation arrangement by share-based payment award award vesting threshold consecutive quarters.

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award award vesting threshold consecutive trading period.

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award equity instruments other than options grants percentage.

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award, fair value assumptions, expected forfeiture rate.

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award, market price.

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award, maximum number of shares issued on each purchase period.

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No definition available.

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

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No definition available.

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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 shares earned as percentage of maximum.

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Share based compensation arrangement by share based payment award shares earned as percentage of target.

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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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No definition available.

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Share based compensation arrangement by share based payment award offering period.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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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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No definition available.

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

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Maximum amount the employee may contribute to a defined contribution plan.

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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 share-based awards, other than options, awarded to employees as compensation.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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No definition available.

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- Definition

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

+ References

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- Definition

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

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No definition available.

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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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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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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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Percentage of vesting of share-based compensation awards.

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- Definition

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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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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No definition available.

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Employee Benefit Plans (Narratives) (Details)			12 Months Ended				55 Months Ended
Employee Benefit Plans (Narratives) (Details)	Feb. 01, 2016 shares	Aug. 27, 2014 shares	Jun. 30, 2018 USD ($) Quarter $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Nov. 20, 2013 shares	Jun. 30, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding for options and awards			2,193,000	3,062,000			2,193,000
Total intrinsic value of options exercised \| $			$ 6,300,000	$ 5,700,000	$ 200,000
Employee stock options and stock awards available for grant			0	0
Weighted-average estimated fair value of options granted (in dollars per share) \| $ / shares					$ 1.59
Total unrecognized compensation cost for unvested stock options \| $			$ 200,000				$ 200,000
Restricted stock units granted			4,595,000
Restricted stock units granted, grant date fair value \| $ / shares			$ 11.15
Unrecognized compensation costs for non-vested stock awards \| $			$ 41,700,000				$ 41,700,000
401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum annual contributions per employee \| $			18,500
Additional annual contribution per employee over age of 50 \| $			$ 6,000
Employer matching contribution per dollar contributed by employee			0.50%
Maximum employer matching contribution of employee total compensation (percent)			2.50%
Matching contributions to the Plan \| $			$ 3,300,000	$ 1,400,000	$ 1,200,000
Employer discretionary contributions \| $			$ 0	$ 0	$ 0
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility rate			42.00%		58.00%
Risk free rate				0.40%	0.33%
Expected term			6 months	6 months	1 year 2 months 12 days
Non-Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate					13.00%
Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate					19.00%
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate fair value, as of the respective vesting dates \| $			$ 51,200,000	$ 9,100,000	$ 8,600,000
Restricted stock units granted, percentage			40.00%
Share-based compensation arrangement by share-based payment award, award vesting percentage			The RSUs vest from the original grant date as to one-third (1/3) on the one-year anniversary and one-twelfth (1/12) each quarter thereafter, subject to continued service to the Company.	The RSUs vest from the original grant date as to one-third (1/3) on the one-year anniversary and one-twelfth (1/12) each quarter thereafter, subject to continued service to the Company.
Aggregate shares withheld upon vesting			1,000,000	400,000	100,000
Cash remitted to the appropriate taxing authorities \| $			$ 11,300,000	$ 2,000,000	$ 200,000
Restricted Stock Units \| VPs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted			1,200,000	1,500,000
Restricted Stock Units \| Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted			600,000	700,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted			0
Restricted stock units granted, grant date fair value \| $ / shares			$ 10.90
Expected volatility rate				56.00%
Risk free rate				0.90%
Expected dividend yield				0.00%
Expected term				3 years
Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, grant date fair value \| $ / shares				$ 3.02
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, grant date fair value \| $ / shares				$ 3.09
Performance Shares \| VPs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted				1,400,000
Restricted stock units granted, percentage			50.00%	50.00%
Performance Shares \| Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted				900,000
Performance Shares \| Chief Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, percentage			60.00%
Performance Shares \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance stock unit vesting, consecutive quarters \| Quarter			2
Restricted stock units vesting, stock trigger price \| $ / shares			$ 16.00	$ 5.00
Restricted stock units vesting, Threshold consecutive trading days after January 1, 2017				30 days
Performance Shares \| Employees \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance stock unit vesting, earnings per share \| $ / shares			$ 0.32
Service-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, percentage			50.00%	50.00%
Market-Based Vesting \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, grant date fair value \| $ / shares			$ 10.61
Market-Based Vesting \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, grant date fair value \| $ / shares			$ 12.19
Market-Based Vesting \| VPs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted			100,000
Stock Price PSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, percentage				50.00%
Stock Price PSU \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price \| $ / shares			$ 8.96
Stock Price PSU \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares earned, Percentage			133.33%
TSR PSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, percentage				50.00%
Expected volatility rate			54.00%
Risk free rate			1.50%
Expected dividend yield			0.00%
Expected term			3 years
Shares earned, Maximum			130.00%
Shares earned, Target			100.00%
TSR PSU \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, grant date fair value \| $ / shares			$ 7.01
TSR PSU \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, grant date fair value \| $ / shares			$ 8.76
Non-vested 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 6 months 25 days
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						12,700,000
Decrease in shares available for future grants for each Full Value Award awarded						1.50%
Additional authorized shares for issuance			9,000,000	8,300,000
Employee stock options and stock awards available for grant			12,100,000				12,100,000
Shares outstanding for options and awards			9,000,000				9,000,000
Contractual term			7 years
Shares transferred from 2005 plan to 2013 plan							6,600,000
Enterasys Networks Inc. 2013 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant			0				0
Shares outstanding for options and awards			800,000				800,000
Contractual term			7 years
2005 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Decrease in shares available for future grants for each Full Value Award awarded			1.50%
Employee stock options and stock awards available for grant			0				0
Shares included in outstanding options			200,000				200,000
Amended 1996 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant			0				0
2014 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance		12,000,000
Weighted-average estimated fair value of options granted (in dollars per share) \| $ / shares			$ 3.25	$ 1.24	$ 0.92
Maximum offering period per purchase period (in months)			6 months
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%
Maximum shares issuable for each purchase period	1,500,000	1,000,000
2014 Employee Stock Purchase Plan \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance			6,600,000				6,600,000
2014 Employee Stock Purchase Plan \| Minimum \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering periods (in months)			6 months
2014 Employee Stock Purchase Plan \| Maximum \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering periods (in months)			24 months