Revenue Recognition (Schedule of Net Revenue Disaggregated by Geographical Region and Sales Channel) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total net revenue	$ 1,168,073	$ 1,255,202	$ 998,763
Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	131,533	195,864	133,317
Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	1,036,540	1,059,338	865,446
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	786,326	897,971	653,006
EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	229,829	221,665	200,099
APAC
Disaggregation of Revenue [Line Items]
Total net revenue	151,918	135,566	145,658
Connected Home
Disaggregation of Revenue [Line Items]
Total net revenue	853,472	1,007,545	711,391
Connected Home | Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	129,052	192,714	128,852
Connected Home | Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	724,420	814,831	582,539
Connected Home | Americas
Disaggregation of Revenue [Line Items]
Total net revenue	651,936	788,402	529,982
Connected Home | EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	112,368	129,929	91,586
Connected Home | APAC
Disaggregation of Revenue [Line Items]
Total net revenue	89,168	89,214	89,823
SMB
Disaggregation of Revenue [Line Items]
Total net revenue	314,601	247,657	287,372
SMB | Service provider
Disaggregation of Revenue [Line Items]
Total net revenue	2,481	3,150	4,465
SMB | Non-service provider
Disaggregation of Revenue [Line Items]
Total net revenue	312,120	244,507	282,907
SMB | Americas
Disaggregation of Revenue [Line Items]
Total net revenue	134,390	109,569	123,024
SMB | EMEA
Disaggregation of Revenue [Line Items]
Total net revenue	117,461	91,736	108,513
SMB | APAC
Disaggregation of Revenue [Line Items]
Total net revenue	$ 62,750	$ 46,352	$ 55,835