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Commitments and Contingencies - Additional Information (Details) $ in Millions |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended | 56 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 05, 2020 USD ($) patent | Apr. 30, 2020 patent | Apr. 01, 2020 USD ($) | Jun. 12, 2019 patent | Feb. 13, 2018 patent | May 25, 2017 USD ($) | Mar. 03, 2017 USD ($) patent | Jan. 06, 2017 patent | May 12, 2016 USD ($) | Sep. 21, 2015 patent company | Sep. 04, 2013 patent | Jan. 23, 2021 USD ($) | Jan. 25, 2020 USD ($) | Jan. 23, 2021 USD ($) | Jan. 25, 2020 USD ($) | Jul. 25, 2020 USD ($) | Jan. 23, 2021 USD ($)
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Provision for purchase commitment liability |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 44.0 | $ 67.0 |  |
Future compensation expense & contingent consideration (up to) |  |  |  |  |  |  |  |  |  |  |  | $ 452.0 |  | 452.0 |  |  | $ 452.0
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Volume of channel partner financing |  |  |  |  |  |  |  |  |  |  |  | 6,700.0 | $ 6,600.0 | 12,800.0 | 14,200.0 |  |
Balance of the channel partner financing subject to guarantees |  |  |  |  |  |  |  |  |  |  |  | 1,300.0 |  | 1,300.0 |  | 1,100.0 | 1,300.0
Financing provided by third parties for leases and loans on which the Company has provided guarantees |  |  |  |  |  |  |  |  |  |  |  | 3.0 | $ 1.0 | $ 8.0 | $ 6.0 |  |
Chanbond | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of service provider companies | company |  |  |  |  |  |  |  |  |  | 13 |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |
SRI International | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  | $ 8.0 |  |  | $ 57.0 |  |  | $ 23.7 |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |
Percentage of royalty awarded |  |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |
Payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 28.1
Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value | $ 1,900.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, initial value | 755.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, enhanced damages for willful infringement | 1,100.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, pre-judgement interest | $ 13.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty awarded against revenue, first three-year term, percentage | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty awarded against revenue, second three-year term, percentage | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement | Sprint Communications Company, L.P. vs. Time Warner Cable, Inc. | Litigation resolved |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents found infringed (patent) | patent |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  |  |  | $ 139.8 |  |  |  |  |  |  |  |  |  |
Pre and Post judgment interest awarded |  |  |  |  |  |  | $ 10.0 |  |  |  |  |  |  |  |  |  |
Patent Infringement | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents found infringed (patent) | patent | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  | 11 |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents, petitioned (patent) | patent |  |  |  |  | 9 |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents, unpatentable (patent) | patent |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement | Finjan | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents, expired (patent) | patent |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |
Patent Infringement | Ramot | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement, IPR Proceedings | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement, Patent Trial and Appeal Board | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  | 7 |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement, Not Subject to IPR Proceedings | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement, Not Subject To IPR Proceedings and IPR Declined | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |
Patent Infringement, European Patents | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of allegedly infringed patents (patent) | patent |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warranty period for products |  |  |  |  |  |  |  |  |  |  |  |  |  | 90 days |  |  |
Channel partners revolving short-term financing payment term |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 days |  |  |
Minimum | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual royalty awarded against revenue, first three-year term | $ 167.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual royalty awarded against revenue, second three-year term | 83.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warranty period for products |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Channel partners revolving short-term financing payment term |  |  |  |  |  |  |  |  |  |  |  |  |  | 90 days |  |  |
End user lease and loan term |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Maximum | Centripetal | Pending litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual royalty awarded against revenue, first three-year term | 300.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual royalty awarded against revenue, second three-year term | $ 150.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax Year 2003 - 2007 | Brazilian tax authority |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax examination, tax |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 148.0 |  |  |
Income tax examination, interest |  |  |  |  |  |  |  |  |  |  |  |  |  | 728.0 |  |  |
Income tax examination, penalties |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 366.0 |  |  |
COVID-19 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in certain channel partners revolving short-term financing payment term |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 days |  |  |
Investments in privately held companies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  | 300.0 |  | $ 300.0 |  | 300.0 | 300.0
Inventories |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for purchase commitments |  |  |  |  |  |  |  |  |  |  |  | $ 152.0 |  | 152.0 |  | 141.0 | $ 152.0
Inventories |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase commitment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,600.0 |  | $ 4,400.0 |

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