Commitments and Contingencies (Details)								1 Months Ended	12 Months Ended
	Sep. 09, 2020 patent	Jun. 21, 2019 patent	Sep. 14, 2018 patent	Jul. 18, 2018 patent	Jul. 14, 2017 patent	Apr. 19, 2017 patent	Aug. 22, 2014 patent	Feb. 08, 2019 case	Dec. 31, 2020 USD ($) claim patent Appeal
Loss Contingencies [Line Items]
Number of days for non-cancellation of purchase obligations prior to expected shipment date									30 days
Non-cancelable purchase commitments with suppliers | $									$ 126,100,000
Liabilities recorded for director and officer indemnification agreements | $									0
Liabilities recorded for customers, distributors, and resellers indemnification agreements | $									0
Liabilities for executive's employment agreements | $									$ 0
Change in control and severance agreements, Termination benefit available term description									one month prior to or 12 months following a change in control
Percentage of excise tax rate under Section 4999 of tax code									20.00%
Number of existing cases and proceedings that the Company currently believes are liking to have a material adverse effect on its financial position | claim | claim									0
The future length the Company currently considered regarding existing cases and proceedings that are likely to have a material adverse effect on it (in months)									12 months
Number of class action lawsuits | case								6
Netgear and Arlo
Loss Contingencies [Line Items]
Number of class action lawsuits | case								4
NETGEAR
Loss Contingencies [Line Items]
Number of class action lawsuits | case								5
Arlo
Loss Contingencies [Line Items]
Number of class action lawsuits | case								2
Via Vadis v. NETGEAR
Loss Contingencies [Line Items]
Number of patents accused of infringing upon							3
Vivato v. NETGEAR
Loss Contingencies [Line Items]
Number of patents under litigation						3
Hera Wireless v. NETGEAR
Loss Contingencies [Line Items]
Number of patents accused of infringing upon			6	3	3				9
Number of patents claims canceled									8
Number of appeals withdrawn | Appeal									7
Aegis 11 S.A. v. NETGEAR [Member]
Loss Contingencies [Line Items]
Number of patents accused of infringing upon		3
Number of patents	3
Number of patents dismissed	1
Chief Executive Officer
Loss Contingencies [Line Items]
Period of health benefits continuation (in months)									12 months
Accelerated vesting period, unvested equity awards (in months)									12 months
Annual base salary and target annual bonus multiple for cash severance									200.00%
Period of health benefits continuation subsequent to change of company control (in months)									24 months
Other Key Executives
Loss Contingencies [Line Items]
Annual base salary and target annual bonus multiple for cash severance									100.00%
Period of health benefits continuation subsequent to change of company control (in months)									12 months
46 to 60 Days
Loss Contingencies [Line Items]
Percentage of cancelable orders									50.00%
31 to 45 Days
Loss Contingencies [Line Items]
Percentage of cancelable orders									25.00%
Non-Trade Activities
Loss Contingencies [Line Items]
Long-term, non-cancellable purchase commitments | $									$ 15,800,000
Minimum | 46 to 60 Days
Loss Contingencies [Line Items]
Required notice period prior to expected shipment date									46 days
Minimum | 31 to 45 Days
Loss Contingencies [Line Items]
Required notice period prior to expected shipment date									31 days
Maximum
Loss Contingencies [Line Items]
Ordering horizon extended period									15 months
Maximum | 46 to 60 Days
Loss Contingencies [Line Items]
Required notice period prior to expected shipment date									60 days
Maximum | 31 to 45 Days
Loss Contingencies [Line Items]
Required notice period prior to expected shipment date									45 days