Equity-based compensation - Schedule of Restricted Stock Units and Performance Stock Units (Details)	3 Months Ended
Apr. 30, 2024 shares
Restricted stock units
Restricted Stock and Performance Stock Activity [Roll Forward]
Beginning balance (in shares)	3,800,210
Granted (in shares)	433,355
Vested (in shares)	(920,820)
Forfeited and expired (in shares)	(54,329)
Ending balance (in shares)	3,258,416
Restricted stock units \| 2023 Stock Option And Inducement Plan
Restricted Stock and Performance Stock Activity [Roll Forward]
Granted (in shares)	22,346
Performance stock units
Restricted Stock and Performance Stock Activity [Roll Forward]
Beginning balance (in shares)	1,040,219
Granted (in shares)	0
Vested (in shares)	0
Forfeited and expired (in shares)	(14,248)
Ending balance (in shares)	1,025,971

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

+ Details

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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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