Goodwill and Acquired Intangible Assets - Summary of Goodwill Activity (Details) - USD ($)	3 Months Ended
Apr. 30, 2021	Apr. 30, 2020
Goodwill [Line Items]
Balance as of January 31, 2021	$ 18,740,000
Goodwill acquired		$ 0
Foreign currency translation	241,000
Balance as of April 30, 2021	75,597,000
SignRequest
Goodwill [Line Items]
Goodwill acquired	43,386,000
Cloud FastPath
Goodwill [Line Items]
Goodwill acquired	$ 13,230,000

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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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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