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Business Acquisitions (Schedule of Intangible Assets Acquired) (Details) - USD ($) $ in Thousands	Aug. 21, 2018	Aug. 11, 2017
Blue Microphones Holding Corporation
Business Acquisition [Line Items]
Fair Value	$ 55,567
Estimated Useful Life (years)	7 years 8 months 12 days
Astro Gaming
Business Acquisition [Line Items]
Fair Value		$ 52,520
Estimated Useful Life (years)		6 years 9 months 18 days
Developed technology | Blue Microphones Holding Corporation
Business Acquisition [Line Items]
Fair Value	$ 17,967
Estimated Useful Life (years)	5 years
Developed technology | Astro Gaming
Business Acquisition [Line Items]
Fair Value		$ 12,540
Estimated Useful Life (years)		4 years
Customer relationships | Blue Microphones Holding Corporation
Business Acquisition [Line Items]
Fair Value	$ 25,100
Estimated Useful Life (years)	10 years
Customer relationships | Astro Gaming
Business Acquisition [Line Items]
Fair Value		$ 33,100
Estimated Useful Life (years)		8 years
Trademark and trade name | Blue Microphones Holding Corporation
Business Acquisition [Line Items]
Fair Value	$ 12,500
Estimated Useful Life (years)	7 years
Trademark and trade name | Astro Gaming
Business Acquisition [Line Items]
Fair Value		$ 6,880
Estimated Useful Life (years)		6 years

X

- 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
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- Definition

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+ References

No definition available.

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- Definition

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=108330185&loc=d3e2207-128464

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