Commitments and Contingencies (Details)													1 Months Ended	6 Months Ended
	Apr. 10, 2020 patent	Jun. 21, 2019 patent	May 14, 2019 patent	Sep. 14, 2018 patent	Jul. 18, 2018 patent	Jan. 03, 2018 decision	Dec. 21, 2017 decision	Jul. 14, 2017 patent	Apr. 19, 2017 patent	Aug. 26, 2016 petition defendant	Jul. 01, 2015 patent	Aug. 22, 2014 patent	Feb. 08, 2019 case	Jun. 28, 2020 USD ($) claim patent case	Apr. 24, 2020 claim
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 | $														$ 124,400,000
Long-term, non-cancellable purchase commitments | $														15,800,000
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
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
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
Chrismar Systems vs. NETGEAR
Loss Contingencies [Line Items]
Number of patents accused of infringing upon											4
Number of active cases the suing company has | case														40
Number of defendants | defendant										3
Number of Final Written Decisions | decision						2	4
Period post Final Written Decision to seek rehearing														30 days
Period post Final Written Decision to file appeal														63 days
Number of new claims court allowed to pursue | claim															2
Chrismar Systems vs. NETGEAR | Juniper
Loss Contingencies [Line Items]
Number of inter partes reviews for resolution | petition										4
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
China Patent Matters- Beijing and Heifei Municipalities [Member]
Loss Contingencies [Line Items]
Number of patents accused of infringing upon	3		2
Aegis 11 S.A. v. NETGEAR [Member]
Loss Contingencies [Line Items]
Number of patents accused of infringing upon		3
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
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%
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 | 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