Business Combinations - Component of Identifiable Intangible Assets Acquired in Connection with Acquisitions (Details) $ in Thousands	6 Months Ended
	Jul. 31, 2020 USD ($)
Voci
Business Acquisition [Line Items]
Identifiable intangible assets	$ 12,600
Voci | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	$ 7,700
Useful life (years)	5 years
Voci | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 4,600
Useful life (years)	5 years
Voci | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	$ 300
Useful life (years)	5 years
LivingLens
Business Acquisition [Line Items]
Identifiable intangible assets	$ 5,700
LivingLens | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	$ 3,100
Useful life (years)	5 years
LivingLens | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 2,200
Useful life (years)	5 years
LivingLens | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	$ 400
Useful life (years)	5 years
Crowdicity
Business Acquisition [Line Items]
Identifiable intangible assets	$ 4,811
Crowdicity | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	$ 2,406
Useful life (years)	5 years
Crowdicity | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 2,105
Useful life (years)	5 years
Crowdicity | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	$ 300
Useful life (years)	5 years
Zingle
Business Acquisition [Line Items]
Identifiable intangible assets	$ 8,715
Zingle | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	$ 4,915
Useful life (years)	5 years
Zingle | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 3,000
Useful life (years)	5 years
Zingle | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	$ 800
Useful life (years)	5 years
Promoter
Business Acquisition [Line Items]
Identifiable intangible assets	$ 900
Promoter | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	$ 700
Useful life (years)	5 years
Promoter | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 0
Promoter | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	$ 200
Useful life (years)	5 years
Cooladata
Business Acquisition [Line Items]
Identifiable intangible assets	$ 4,600
Cooladata | Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets	$ 4,600
Useful life (years)	5 years
Cooladata | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 0
Cooladata | Trademarks
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
Useful life (years)	5 years
Strikedeck | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	$ 0
Strikedeck | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	$ 0