[Line Items] for Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Table]

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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.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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- Definition

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

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Acquisitions, Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands				9 Months Ended	12 Months Ended
	Nov. 01, 2019	Oct. 01, 2019	Sep. 13, 2019	Oct. 31, 2020	Jan. 31, 2020
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Goodwill				$ 1,301,073	$ 1,292,840
Developed technology
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired intangible assets, remaining useful life				62 months	68 months
Customer relationships
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired intangible assets, remaining useful life				44 months	53 months
Other acquired intangible assets
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired intangible assets, remaining useful life				23 months	32 months
SignalFx
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets		$ 173,700
Percentage of voting interests acquired		100.00%
Purchase price		$ 961,400
Purchase price paid in cash		619,100
Fair value of replacement equity awards attributable to pre-acquisition service		324,500
Acquired fair value of finite-lived intangible assets		173,700
Net assets (liabilities) acquired		62,100
Goodwill		728,900
Replacement equity awards		104,700
SignalFx \| Developed technology
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets		$ 108,800
Acquired intangible assets, remaining useful life		84 months
Acquired fair value of finite-lived intangible assets		$ 108,800
SignalFx \| Customer relationships
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets		$ 60,900
Acquired intangible assets, remaining useful life		60 months
Acquired fair value of finite-lived intangible assets		$ 60,900
SignalFx \| Other acquired intangible assets
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets		$ 4,000
Acquired intangible assets, remaining useful life		36 months
Acquired fair value of finite-lived intangible assets		$ 4,000
Omnition
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets			$ 8,000
Percentage of voting interests acquired			100.00%
Purchase price			$ 52,500
Purchase price paid in cash			31,600
Fair value of replacement equity awards attributable to pre-acquisition service			20,200
Acquired fair value of finite-lived intangible assets			8,000
Goodwill			44,500
Replacement equity awards			36,600
Omnition \| Developed technology
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets			$ 8,000
Acquired intangible assets, remaining useful life			60 months
Acquired fair value of finite-lived intangible assets			$ 8,000
Streamlio
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets	$ 3,600
Percentage of voting interests acquired	100.00%
Purchase price	$ 19,800
Purchase price paid in cash	18,700
Fair value of replacement equity awards attributable to pre-acquisition service	1,100
Acquired fair value of finite-lived intangible assets	3,600
Net assets (liabilities) acquired	100
Goodwill	16,100
Replacement equity awards	4,200
Streamlio \| Developed technology
Finite-Lived and Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Acquired fair value of finite-lived intangible assets	$ 3,600
Acquired intangible assets, remaining useful life	36 months
Acquired fair value of finite-lived intangible assets	$ 3,600