Commitments and Contingencies	6 Months Ended
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Purchase Commitments The Company currently has arrangements with contract manufacturers and suppliers for the manufacture of its products. The arrangements allow them to procure long lead-time component inventory based upon a rolling production forecast provided by the Company. The Company is obligated to the purchase of long lead-time component inventory that its contract manufacturer procures in accordance with the forecast, unless the Company gives notice of order cancellation outside of applicable component lead-times. As of December 31, 2013, the Company had non-cancelable commitments to purchase approximately $63.2 million of such inventory. Legal Proceedings The Company may from time to time be party to litigation arising in the course of its business, including, without limitation, allegations relating to commercial transactions, business relationships or intellectual property rights. Such claims, even if not meritorious, could result in the expenditure of significant financial and managerial resources. Litigation in general, and intellectual property and securities litigation in particular, can be expensive and disruptive to normal business operations. Moreover, the results of legal proceedings are difficult to predict. In accordance with applicable accounting guidance, the Company records accruals for certain of its outstanding legal proceedings, investigations or claims when it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. The Company evaluates, at least on a quarterly basis, developments in legal proceedings, investigations or claims that could affect the amount of any accrual, as well as any developments that would result in a loss contingency to become both probable and reasonably estimable. When a loss contingency is not both probable and reasonably estimable, the Company does not record a loss accrual. However, if the loss (or an additional loss in excess of any prior accrual) is at least a reasonable possibility and material, then the Company would disclose an estimate of the possible loss or range of loss, if such estimate can be made, or disclose that an estimate cannot be made. The assessment whether a loss is probable or a reasonable possibility, and whether the loss or a range of loss is estimable, involves a series of complex judgments about future events. Even if a loss is reasonably possible, the Company may not be able to estimate a range of possible loss, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel or unsettled legal theories or a large number of parties. In such cases, there is considerable uncertainty regarding the ultimate resolution of such matters, including the amount of any possible loss, fine or penalty. Accordingly, for current proceedings, the Company is currently unable to estimate any reasonably possible loss or range of possible loss. However, an adverse resolution of one or more of such matters could have a material adverse effect on the Company's results of operations in a particular quarter or fiscal year. Intellectual Property Litigation Relay IP Inc. On May 3, 2013, Relay IP, Inc. filed suit against the Company in the United States District Court for the District of Delaware, Civil Action case number 13-775 (Extreme Case). Further on May 6, 2013 they also filed a similar suit against Enterasys in the same court, Civil Action case number 13-774.The complaint alleges infringement based on the Company's testing of its own equipment and inducing its customers to infringe U.S. Patent No. 5,331,637 and seeks unspecified monetary damages. An answer was filed on both cases in July, 2013. The suit is one of approximately 40 nearly simultaneous suits filed against numerous networking equipment manufacturers, suppliers, operators, and users including Cisco Systems, Hewlett-Packard, Juniper Networks, Avaya, Extreme and Enterasys. The Company denies the claims and intends to vigorously defend itself in both cases. Given the preliminary nature of the claims, it is premature to assess the likelihood of a particular outcome. ReefEdge On September 17, 2012, ReefEdge filed suit against Enterasys in the United States District Court for the District of Delaware alleging certain of the company's products (wireless controllers and wireless access points), infringe three ReefEdge U.S. patents (6633761, 6975864, 7197308). ReefEdge, a Non-Practicing Entity, seeks injunctive relief as well as monetary damages, cost, expenses and attorney fees, although there was no quantified amount sought. Preliminary talks have taken place between the parties. Enterasys has filed its Answer to the claims and is awaiting a scheduling conference. Extreme assumed this litigation as part of the acquisition of Enterasys. Given the preliminary nature of the claims, it is premature to assess the likelihood of a particular outcome. Indemnification Obligations Subject to certain limitations, the Company may be obligated to indemnify its current and former directors, officers and employees. These obligations arise under the terms of its certificate of incorporation, its bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify, where applicable, generally means that the Company is required to pay or reimburse, and in certain circumstances the Company has paid or reimbursed, the individuals' reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters. It is not possible to estimate the maximum potential amount under these indemnification agreements due to the limited history of these claims. The cost to defend the Company and the named individuals could have a material adverse effect on its consolidated financial position, results of operations and cash flows in the future. Recovery of such costs under its directors and officers insurance coverage is uncertain. As of December 31, 2013, the Company had no outstanding indemnification claims.

Commitments and Contingencies

Purchase Commitments

The Company currently has arrangements with contract manufacturers and suppliers for the manufacture of its products. The arrangements allow them to procure long lead-time component inventory based upon a rolling production forecast provided by the Company. The Company is obligated to the purchase of long lead-time component inventory that its contract manufacturer procures in accordance with the forecast, unless the Company gives notice of order cancellation outside of applicable component lead-times. As of December 31, 2013, the Company had non-cancelable commitments to purchase approximately $63.2 million of such inventory.

Legal Proceedings

The Company may from time to time be party to litigation arising in the course of its business, including, without limitation, allegations relating to commercial transactions, business relationships or intellectual property rights. Such claims, even if not meritorious, could result in the expenditure of significant financial and managerial resources. Litigation in general, and intellectual property and securities litigation in particular, can be expensive and disruptive to normal business operations. Moreover, the results of legal proceedings are difficult to predict.

In accordance with applicable accounting guidance, the Company records accruals for certain of its outstanding legal proceedings, investigations or claims when it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. The Company evaluates, at least on a quarterly basis, developments in legal proceedings, investigations or claims that could affect the amount of any accrual, as well as any developments that would result in a loss contingency to become both probable and reasonably estimable. When a loss contingency is not both probable and reasonably estimable, the Company does not record a loss accrual. However, if the loss (or an additional loss in excess of any prior accrual) is at least a reasonable possibility and material, then the Company would disclose an estimate of the possible loss or range of loss, if such estimate can be made, or disclose that an estimate cannot be made. The assessment whether a loss is probable or a reasonable possibility, and whether the loss or a range of loss is estimable, involves a series of complex judgments about future events. Even if a loss is reasonably possible, the Company may not be able to estimate a range of possible loss, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel or unsettled legal theories or a large number of parties. In such cases, there is considerable uncertainty regarding the ultimate resolution of such matters, including the amount of any possible loss, fine or penalty. Accordingly, for current proceedings, the Company is currently unable to estimate any reasonably possible loss or range of possible loss. However, an adverse resolution of one or more of such matters could have a material adverse effect on the Company's results of operations in a particular quarter or fiscal year.

Intellectual Property Litigation

Relay IP Inc.

On May 3, 2013, Relay IP, Inc. filed suit against the Company in the United States District Court for the District of Delaware, Civil Action case number 13-775 (Extreme Case). Further on May 6, 2013 they also filed a similar suit against Enterasys in the same court, Civil Action case number 13-774.The complaint alleges infringement based on the Company's testing of its own equipment and inducing its customers to infringe U.S. Patent No. 5,331,637 and seeks unspecified monetary damages. An answer was filed on both cases in July, 2013. The suit is one of approximately 40 nearly simultaneous suits filed against numerous networking equipment manufacturers, suppliers, operators, and users including Cisco Systems, Hewlett-Packard, Juniper Networks, Avaya, Extreme and Enterasys. The Company denies the claims and intends to vigorously defend itself in both cases. Given the preliminary nature of the claims, it is premature to assess the likelihood of a particular outcome.

ReefEdge

On September 17, 2012, ReefEdge filed suit against Enterasys in the United States District Court for the District of Delaware alleging certain of the company's products (wireless controllers and wireless access points), infringe three ReefEdge U.S. patents (6633761, 6975864, 7197308). ReefEdge, a Non-Practicing Entity, seeks injunctive relief as well as monetary damages, cost, expenses and attorney fees, although there was no quantified amount sought. Preliminary talks have taken place between the parties. Enterasys has filed its Answer to the claims and is awaiting a scheduling conference. Extreme assumed this litigation as part of the acquisition of Enterasys. Given the preliminary nature of the claims, it is premature to assess the likelihood of a particular outcome.

Indemnification Obligations

Subject to certain limitations, the Company may be obligated to indemnify its current and former directors, officers and employees. These obligations arise under the terms of its certificate of incorporation, its bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify, where applicable, generally means that the Company is required to pay or reimburse, and in certain circumstances the Company has paid or reimbursed, the individuals' reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters. It is not possible to estimate the maximum potential amount under these indemnification agreements due to the limited history of these claims. The cost to defend the Company and the named individuals could have a material adverse effect on its consolidated financial position, results of operations and cash flows in the future. Recovery of such costs under its directors and officers insurance coverage is uncertain. As of December 31, 2013, the Company had no outstanding indemnification claims.