Commitments And Contingencies (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2008 companies	Mar. 30, 2014 patent case supplier Y claims	Dec. 31, 2013	May 21, 2013 case	Sep. 17, 2012 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		$ 170,000,000
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 other companies lawsuit was filed against (in companies)	30
Number of Patents Company Is Accused Of Infringing					3	8
Number of cases other company filed against the Company		138
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
Litigation settlement expense			3,555,000
Liability for Director and Officer Indemnification Agreements		0
Liability For Customers, Distributors, and Resellers Indemnification Agreements		0
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] | 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] | 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%