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Document And Entity Information - shares
6 Months Ended
Jun. 28, 2015
Jul. 24, 2015
Document And Entity Information [Abstract]    
Entity Registrant Name NETGEAR, INC  
Entity Central Index Key 0001122904  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 28, 2015  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   32,143,178