Segment Information (Schedule of Reportable Segments and Reconciliation of Segment Contribution Income to Income (loss) Before Income Taxes) (Details) - USD ($)		3 Months Ended		12 Months Ended
		Oct. 01, 2023	Apr. 03, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total net revenue				$ 740,840,000	$ 932,472,000	$ 1,168,073,000
Total segment contribution income				77,584,000	67,251,000	179,025,000
Corporate and unallocated costs				(87,453,000)	(82,888,000)	(83,883,000)
Amortization of intangibles	[1]			(257,000)	(514,000)	(1,897,000)
Stock-based compensation expense				(17,938,000)	(17,734,000)	(25,995,000)
Change in fair value of contingent consideration				0	0	3,003,000
Goodwill impairment charge				0	(44,442,000)	0
Intangibles impairment				(1,071,000)	0	0
Restructuring and other charges				(3,962,000)	(4,577,000)	(3,341,000)
Litigation reserves, net				(178,000)	(20,000)	(315,000)
Other income (expenses), net	[2]			14,139,000	902,000	(1,093,000)
Income (loss) before income taxes				(19,136,000)	(82,022,000)	65,504,000
Connected Home
Segment Reporting Information [Line Items]
Total net revenue				446,865,000	558,823,000	853,472,000
Total segment contribution income				$ 19,052,000	$ (8,539,000)	$ 116,889,000
Segment contribution margin				4.30%	(1.50%)	13.70%
Goodwill impairment charge			$ (44,400,000)	$ 0	$ (44,442,000)	$ 0
Intangibles impairment		$ (1,100,000)
NETGEAR for Business
Segment Reporting Information [Line Items]
Total net revenue				293,975,000	373,649,000	314,601,000
Total segment contribution income				$ 58,532,000	$ 75,790,000	$ 62,136,000
Segment contribution margin				19.90%	20.30%	19.80%
Goodwill impairment charge				$ 0	$ 0	$ 0

[1] Amounts excluded amortization expense related to patents within purchased intangibles in cost of revenue.

[2] Amounts included gain/(loss), net from litigation settlement of $6.0 million for the year ended December 31, 2023, and gain/(loss), net from derivatives not designated as hedging instruments of $0.3 million, $2.7 million and $4.2 million, for the years ended December 31, 2023, 2022 and 2021, respectively.