Business Combinations - Component of Identifiable Intangible Assets Acquired in Connection with Acquisitions (Details) $ in Thousands	9 Months Ended
	Oct. 31, 2020 USD ($)
Developed technology
Business Acquisition [Line Items]
Useful life (years)	5 years
Customer relationships
Business Acquisition [Line Items]
Useful life (years)	5 years
Other | Minimum
Business Acquisition [Line Items]
Useful life (years)	1 year
Other | Maximum
Business Acquisition [Line Items]
Useful life (years)	5 years
Sense360
Business Acquisition [Line Items]
Identifiable intangible assets	$ 10,500
Sense360 | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	5,000
Sense360 | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	5,200
Sense360 | Other
Business Acquisition [Line Items]
Identifiable intangible assets	300
Stella Connect
Business Acquisition [Line Items]
Identifiable intangible assets	20,800
Stella Connect | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	9,400
Stella Connect | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	10,000
Stella Connect | Other
Business Acquisition [Line Items]
Identifiable intangible assets	1,400
Voci
Business Acquisition [Line Items]
Identifiable intangible assets	12,600
Voci | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	7,700
Voci | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	4,600
Voci | Other
Business Acquisition [Line Items]
Identifiable intangible assets	300
LivingLens
Business Acquisition [Line Items]
Identifiable intangible assets	5,700
LivingLens | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	3,100
LivingLens | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	2,200
LivingLens | Other
Business Acquisition [Line Items]
Identifiable intangible assets	400
Crowdicity
Business Acquisition [Line Items]
Identifiable intangible assets	4,811
Crowdicity | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	2,406
Crowdicity | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	2,105
Crowdicity | Other
Business Acquisition [Line Items]
Identifiable intangible assets	300
Zingle
Business Acquisition [Line Items]
Identifiable intangible assets	8,715
Zingle | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	4,915
Zingle | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	3,000
Zingle | Other
Business Acquisition [Line Items]
Identifiable intangible assets	800
Promoter.io
Business Acquisition [Line Items]
Identifiable intangible assets	900
Promoter.io | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	700
Promoter.io | Other
Business Acquisition [Line Items]
Identifiable intangible assets	200
Cooladata
Business Acquisition [Line Items]
Identifiable intangible assets	4,600
Cooladata | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	4,600
Cooladata | Other
Business Acquisition [Line Items]
Identifiable intangible assets	0
Strikedeck
Business Acquisition [Line Items]
Identifiable intangible assets	4,000
Strikedeck | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	4,000
Strikedeck | Other
Business Acquisition [Line Items]
Identifiable intangible assets	$ 0