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
		Apr. 03, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total net revenue			$ 932,472,000	$ 1,168,073,000	$ 1,255,202,000
Total segment contribution income			67,251,000	179,025,000	194,686,000
Corporate and unallocated costs			(82,888,000)	(83,883,000)	(83,867,000)
Amortization of intangibles	[1]		(514,000)	(1,897,000)	(5,952,000)
Stock-based compensation expense			(17,734,000)	(25,995,000)	(30,505,000)
Change in fair value of contingent consideration			0	3,003,000	2,928,000
Goodwill impairment charge			(44,442,000)	0	0
Restructuring and other charges			(4,577,000)	(3,341,000)	(1,702,000)
Litigation reserves, net			(20,000)	(315,000)	(44,000)
Other income (expenses), net			902,000	(1,093,000)	(4,741,000)
Income (loss) before income taxes			(82,022,000)	65,504,000	70,803,000
Connected Home
Segment Reporting Information [Line Items]
Total net revenue			558,823,000	853,472,000	1,007,545,000
Total segment contribution income			$ (8,539,000)	$ 116,889,000	$ 152,512,000
Segment contribution margin			(1.50%)	13.70%	15.10%
Goodwill impairment charge		$ (44,400,000)	$ (44,442,000)	$ 0	$ 0
SMB
Segment Reporting Information [Line Items]
Total net revenue			373,649,000	314,601,000	247,657,000
Total segment contribution income			$ 75,790,000	$ 62,136,000	$ 42,174,000
Segment contribution margin			20.30%	19.80%	17.00%
Goodwill impairment charge		$ 0	$ 0	$ 0	$ 0

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