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Business Acquisitions - Estimated Fair Values and Useful Lives of Intangible Assets (Details) - USD ($) $ in Thousands | Oct. 31, 2019 | Aug. 21, 2018
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Streamlabs |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 37,000 |
Estimated Useful Life (years) | 5 years 10 months 24 days |
Blue Microphones Holding Corporation |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 55,567
Estimated Useful Life (years) |  | 7 years 8 months 12 days
Developed technology | Streamlabs |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 21,800 |
Estimated Useful Life (years) | 6 years |
Developed technology | Blue Microphones Holding Corporation |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 17,967
Estimated Useful Life (years) |  | 5 years
Customer relationships | Streamlabs |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 6,000 |
Estimated Useful Life (years) | 2 years |
Customer relationships | Blue Microphones Holding Corporation |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 25,100
Estimated Useful Life (years) |  | 10 years
Trademark and trade name | Blue Microphones Holding Corporation |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 12,500
Estimated Useful Life (years) |  | 7 years
Trade name | Streamlabs |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 9,200 |
Estimated Useful Life (years) | 8 years |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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