Equity-based compensation - Schedule of Restricted Stock Units and Performance Stock Units (Details)	9 Months Ended
Oct. 31, 2023 shares
Restricted stock units
Restricted Stock and Performance Stock Activity [Roll Forward]
Beginning balance (in shares)	3,917,753
Granted (in shares)	2,135,772
Vested (in shares)	(1,239,562)
Forfeited and expired (in shares)	(450,626)
Ending balance (in shares)	4,363,337
Restricted stock units \| 2023 Stock Option And Inducement Plan
Restricted Stock and Performance Stock Activity [Roll Forward]
Granted (in shares)	24,258
Performance stock units
Restricted Stock and Performance Stock Activity [Roll Forward]
Beginning balance (in shares)	648,233
Granted (in shares)	13,492
Vested (in shares)	0
Forfeited and expired (in shares)	(74,472)
Ending balance (in shares)	587,253

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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