Composition of certain financial statement captions - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2020	Jan. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment	$ 52,799	$ 50,038
Less accumulated depreciation and amortization	(37,813)	(35,551)
Property and equipment — net	$ 14,986	14,487
PhreesiaPads and Arrivals Stations
Property, Plant and Equipment [Line Items]
Useful life (years)	3 years
Property and equipment	$ 27,833	26,389
Computer equipment
Property, Plant and Equipment [Line Items]
Useful life (years)	3 years
Property and equipment	$ 19,612	18,394
Computer software
Property, Plant and Equipment [Line Items]
Useful life (years)	3 years
Property and equipment	$ 2,386	2,297
Hardware development
Property, Plant and Equipment [Line Items]
Useful life (years)	3 years
Property and equipment	$ 1,024	1,024
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life (years)	7 years
Property and equipment	$ 745	743
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful life (years)	2 years
Property and equipment	$ 1,199	$ 1,191

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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-Name Accounting Standards Codification
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-Section 50
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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 360
-SubTopic 10
-Section 50
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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