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Intangible Assets and Goodwill - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020	Jan. 31, 2021
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired			$ 400,000
Amortization expense	$ 1,900,000	$ 900,000	5,700,000	$ 1,900,000
Goodwill	8,449,000		8,449,000		$ 8,449,000
Goodwill impairments	$ 0	$ 0	0	$ 0
Assembled workforce
Business Acquisition [Line Items]
Intangible assets acquired			$ 15,100,000
Weighted-average useful life			4 years
Patents
Business Acquisition [Line Items]
Weighted-average useful life			4 years
Indefinite-lived intangible assets acquired			$ 200,000