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Business Combinations - Finite-Lived Intangible Assets (Details) - Signal Sciences Corp. $ in Thousands	Oct. 01, 2020 USD ($)
Business Acquisition [Line Items]
Total intangible assets acquired	$ 124,100
Estimated useful life (in years)	6 years 7 months 6 days
Customer relationships
Business Acquisition [Line Items]
Total intangible assets acquired	$ 69,100
Estimated useful life (in years)	8 years
Developed technology
Business Acquisition [Line Items]
Total intangible assets acquired	$ 49,500
Estimated useful life (in years)	5 years
Trade name
Business Acquisition [Line Items]
Total intangible assets acquired	$ 3,300
Estimated useful life (in years)	3 years
Backlog
Business Acquisition [Line Items]
Total intangible assets acquired	$ 2,200
Estimated useful life (in years)	2 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
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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

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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
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