v2.4.0.8

Commitments And Contingencies (Narrative) (Details) (USD $) | 1 Months Ended | 2 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |
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Oct. 30, 2013 patent claim claims | Oct. 31, 2008 companies | Dec. 31, 2012 | Jul. 03, 2012 | Sep. 29, 2013 patent Y case claims | Dec. 31, 2012 supplier patent case | Oct. 31, 2013 patent | May 21, 2013 case | Jan. 03, 2013 case | Sep. 17, 2012 patent | Jul. 31, 2012 patent | May 09, 2012 claims | Mar. 03, 2012 claims | Dec. 28, 2011 case | Nov. 16, 2011 actions patents | Nov. 19, 2010 patent | Sep. 14, 2010 patents
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating leases expiration date |  |  |  |  | Dec. 31, 2026 |  |  |  |  |  |  |  |  |  |  |  |
Number of days for non-cancellation of purchase obligations prior to expected shipment date (in days) |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |
Non-cancelable purchase commitments |  |  |  |  | $ 211,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Continued vesting period after termination without cause (in years) |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Number of exiting cases and procedings that the Company currently believes are liking to have a material adverse effect on its financial position |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
The future legnth the Company currently considered regarding existing cases and proceedings that are likely to have a material advese effect on it (in months) |  |  |  |  | 12 months |  |  |  |  |  |  |  |  |  |  |  |
Number of offensive cases against the company and another company should be consolidated |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |
Maximum number of asserted claims in filed status report ( in claims) |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |
Number of other companies lawsuit was filed against (in companies) |  | 30 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents company is accused of infringing (in patents) |  |  |  |  |  |  |  |  |  | 3 | 6 |  |  |  |  |  | 8
Number of Remaining Patents Company is Accused of Infringing |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |
Reasonable and nondiscriminatory (RAND) royalty rate (USD per unit) |  |  |  |  | 0.15 |  |  |  |  |  |  |  |  |  |  |  |
Foregone colleting verdict amount (in USD) |  |  |  |  | 3,555,000 |  |  |  |  |  |  |  |  |  |  |  |
Foregone colleting prejudgement interest ( in USD) |  |  |  |  | 224,141 |  |  |  |  |  |  |  |  |  |  |  |
Foregone colleting prejectment interest (USD per day) |  |  |  |  | 336 |  |  |  |  |  |  |  |  |  |  |  |
Foregone Collecting Costs (in USD) |  |  |  |  | 41,667 |  |  |  |  |  |  |  |  |  |  |  |
Number of wired claims rejected in the patent (in claims) |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |
Number of patents in which company filed judgement action for nonInfringement and invalidity (in patents) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17 |  |
Number of actions brought against end user customers and other companies (in actions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 |  |
number of other similar cases will now proceed in the Northern District of Illinois in a consolidated fashion |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 |  |  |
Length of trial period (in days) |  |  | 10 days | 10 days |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Impact to the Company |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
Number of patents company filed suit for infringement of (in patents) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |
Number of standing patents the company has filed against other companies | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of claims remaining standing that the Company has filed against other companies | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents a jury rendered a verdit that were not infringed by other companies that the company filed against |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |
Number of claims that a jury issued a verdict that were not infringed by other companies that the Comapany filed against |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |
Litigation settlement expense |  |  |  |  | 3,555,000 |  |  |  |  |  |  |  |  |  |  |  |
Liability for Director and Officer Indemnification Agreements |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
Liability For Customers, Distributors, and Resellers Indemnification Agreements |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
Number of patents the Company brought its declaratory judgment actotion on non-infringement and invalidity |  |  |  |  |  |  |  |  |  |  | 17 |  |  |  |  |  |
Minimum Number of Lawsuits Filed Against Third-Party Suppliers By Competitor |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |
Number of Third-Party Suppliers Filing Declaratory Judgement Actions |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |
Number of Three Asserted Patents with Pending Reexamination |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Number of years the plaintiff seeks damages for |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |
Number of cases the plaintiff asserted |  |  |  |  | 22 |  |  |  |  |  |  |  |  |  |  |  |
Number of cases the plaintiff filed against other companies, including the compapy |  |  |  |  |  |  |  | 9 |  |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patent rate valued by the plaintiff against the Company |  |  |  |  | 3.39 |  |  |  |  |  |  |  |  |  |  |  |
Minimum [Member] | 46 To 60 Days [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Required notice period prior to the expected shipment date (in days) |  |  |  |  | 46 days |  |  |  |  |  |  |  |  |  |  |  |
Minimum [Member] | 31 To 45 Days [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Required notice period prior to the expected shipment date (in days) |  |  |  |  | 31 days |  |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patent rate valued by the plaintiff against the Company |  |  |  |  | 16.17 |  |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] | 46 To 60 Days [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Required notice period prior to the expected shipment date (in days) |  |  |  |  | 60 days |  |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] | 31 To 45 Days [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Required notice period prior to the expected shipment date (in days) |  |  |  |  | 45 days |  |  |  |  |  |  |  |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of weeks for which salary is payable upon termination of employment without cause (in days) |  |  |  |  | 365 days |  |  |  |  |  |  |  |  |  |  |  |
Number of years after change of control to trigger full accelerated vest of unvested portion of stock options (in years) |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Senior Vice President Of Worldwide Operations And Support [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of weeks for which salary is payable upon termination of employment without cause (in days) |  |  |  |  | 273 days |  |  |  |  |  |  |  |  |  |  |  |
Other Key Executives [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of weeks for which salary is payable upon termination of employment without cause (in days) |  |  |  |  | 182 days |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of years covered by accelerated vest for other key executives if term without cause is within one year of change in control (in years) |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |
D-Link [Member] | Ericsson v. NETGEAR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value |  |  |  |  | 435,000 |  |  |  |  |  |  |  |  |  |  |  |
NETGEAR [Member] | Ericsson v. NETGEAR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value |  |  |  |  | 3,555,000 |  |  |  |  |  |  |  |  |  |  |  |
Toshiba [Member] | Ericsson v. NETGEAR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value |  |  |  |  | 2,445,000 |  |  |  |  |  |  |  |  |  |  |  |
Belkin [Member] | Ericsson v. NETGEAR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value |  |  |  |  | 600,000 |  |  |  |  |  |  |  |  |  |  |  |
Acer Gateway [Member] | Ericsson v. NETGEAR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value |  |  |  |  | 1,170,000 |  |  |  |  |  |  |  |  |  |  |  |
Dell [Member] | Ericsson v. NETGEAR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Awarded, Value |  |  |  |  | $ 1,920,000 |  |  |  |  |  |  |  |  |  |  |  |
31 To 45 Days [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of cancelable orders |  |  |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
46 To 60 Days [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of cancelable orders |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |

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