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Revenue Recognition (Schedule of Net Revenue Disaggregated by Geographical Region and Sales Channel) (Details) - USD ($) $ in Thousands | 12 Months Ended
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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

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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