Intangible Assets, Net - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Jan. 31, 2021	Jun. 25, 2015
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of amortization expense	$ 17,291,000		$ 18,703,000
Accumulated amortization of intangible asset	7,934,000		6,440,000
Liabilities associated with noncancelable internal-use software license at net present value, current	5,596,000		5,582,000
Liabilities associated with noncancelable internal-use software license at net present value, non-current	4,226,000		6,259,000
Impairment of intangible assets	0	$ 0
IPR&D [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of amortization expense	4,100,000		4,100,000
Accumulated amortization of intangible asset	0		0
IPR&D [Member] | Vis Lab SRL [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets acquired				$ 4,100,000
Internal-use software licenses [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of amortization expense	13,191,000		14,603,000
Accumulated amortization of intangible asset	7,934,000		$ 6,440,000
Amortization expense	$ 1,500,000	$ 1,500,000