v3.25.2

Commitments, contingencies and other liabilities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) multiple	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2017 USD ($)
Commitments contingencies and other liabilities
Contingency reserves for litigation liabilities		$ 0.0	$ 0.0
Non-profit organization agreement
Commitments contingencies and other liabilities
Maximum funding	$ 4.0
Funding multiple \| multiple	2.6
Milestone payment liability				$ 1.0

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-10

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- Definition

Reflects the value of the milestone payment received from the non-profit organization recognized as a liability as it is probable that the Company will repay the amount.

+ References

No definition available.

+ Details

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- Definition

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+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reflects the multiple to be used for future funding following successful development and commercialization.

+ References

No definition available.

+ Details

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Voyager Therapeutics, Inc. 10-Q