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Acquisitions - Intangible Assets Acquired (Details) - Seal Software Group Limited $ in Thousands	12 Months Ended
	Jan. 31, 2021 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 83,700
Weighted Average Useful Life	7 years 3 months 18 days
Existing technology
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 37,400
Weighted Average Useful Life	5 years
Customer relationships—subscription
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 41,700
Weighted Average Useful Life	10 years
Backlog—subscription
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 4,600
Weighted Average Useful Life	2 years

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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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

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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