Segment Information (Schedule of Reportable Segments and Reconciliation of Segment Contribution Income (Loss) to Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Oct. 02, 2022	Apr. 03, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021
Segment Reporting Information [Line Items]
Total net revenue	[1]	$ 249,587		$ 290,150	$ 683,369	$ 916,886
Total segment contribution income		23,171		39,695	50,811	151,020
Corporate and unallocated costs		(21,392)		(20,203)	(62,532)	(62,744)
Amortization of intangibles	[2]	(129)		(145)	(386)	(1,768)
Stock-based compensation expense		(3,440)		(6,210)	(13,266)	(20,072)
Change in fair value of contingent consideration		0		0	0	3,003
Goodwill impairment charge		0		0	(44,442)	0
Restructuring and other charges		(361)		(222)	(911)	(3,378)
Litigation reserves, net		0		0	(20)	(315)
Other income (expenses), net	[3]	638		(132)	(1,164)	15
Income (loss) before income taxes		(1,513)		12,783	(71,910)	65,761
Connected Home
Segment Reporting Information [Line Items]
Total net revenue	[1]	150,581		208,539	409,787	679,320
Total segment contribution income		$ (512)		$ 22,558	$ (3,033)	$ 101,189
Segment contribution margin		(0.30%)		10.80%	(0.70%)	14.90%
Goodwill impairment charge			$ (44,400)		$ (44,442)
SMB
Segment Reporting Information [Line Items]
Total net revenue	[1]	$ 99,006		$ 81,611	273,582	$ 237,566
Total segment contribution income		$ 23,683		$ 17,137	$ 53,844	$ 49,831
Segment contribution margin		23.90%		21.00%	19.70%	21.00%
Goodwill impairment charge			$ 0		$ 0

[1] No individual foreign country represented more than 10% of the Company's total net revenue in the periods presented.

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

[3]              Amounts included gain/(loss), net from derivatives not designated as hedging instruments of $3.4 million and $6.9 million, for the three and nine months ended October 2, 2022, respectively, and $1.8 million and $2.9 million for the three and nine months ended October 3, 2021, respectively.