Revenue Recognition (Schedule of Net Revenue Disaggregated by Geographical Region and Sales Channel) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	[1]	Sep. 30, 2018	Oct. 01, 2017	[1]
Disaggregation of Revenue [Line Items]
Total net revenue	$ 400,586	$ 355,483		$ 1,112,379	$ 1,009,863
Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	37,933	51,539		143,804	164,544
Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	362,653	303,944		968,575	845,319
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	288,784	244,388		782,230	682,966
EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	64,917	62,161		200,227	175,810
APAC
Disaggregation of Revenue [Line Items]
Total net revenue	46,885	48,934		129,922	151,087
Arlo
Disaggregation of Revenue [Line Items]
Total net revenue	131,174	110,460		332,197	249,904
Arlo | Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	5,973	5,794		21,951	15,743
Arlo | Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	125,201	104,666		310,246	234,161
Arlo | Americas
Disaggregation of Revenue [Line Items]
Total net revenue	112,851	88,134		264,728	197,291
Arlo | EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	11,759	17,178		49,649	39,585
Arlo | APAC
Disaggregation of Revenue [Line Items]
Total net revenue	6,564	5,148		17,820	13,028
Connected Home
Disaggregation of Revenue [Line Items]
Total net revenue	194,684	183,099		563,628	563,365
Connected Home | Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	30,769	44,631		118,899	146,309
Connected Home | Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	163,915	138,468		444,729	417,056
Connected Home | Americas
Disaggregation of Revenue [Line Items]
Total net revenue	141,884	129,034		422,759	396,912
Connected Home | EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	27,619	22,731		70,073	63,634
Connected Home | APAC
Disaggregation of Revenue [Line Items]
Total net revenue	25,181	31,334		70,796	102,819
SMB
Disaggregation of Revenue [Line Items]
Total net revenue	74,728	61,924		216,554	196,594
SMB | Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	1,191	1,114		2,954	2,492
SMB | Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	73,537	60,810		213,600	194,102
SMB | Americas
Disaggregation of Revenue [Line Items]
Total net revenue	34,049	27,220		94,743	88,763
SMB | EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	25,539	22,252		80,505	72,591
SMB | APAC
Disaggregation of Revenue [Line Items]
Total net revenue	$ 15,140	$ 12,452		$ 41,306	$ 35,240

[1] As noted above, prior period amounts have not been adjusted under the modified retrospective method.