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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Related party transactions - Additional information (Detail) - $ / shares	Nov. 05, 2025	Sep. 26, 2024	Apr. 22, 2024	Aug. 11, 2023
Related Party Transaction [Line Items]
Sale of Stock, Number of Shares Issued			5,749,152
Sale of Stock, Price Per Share			$ 4.8	$ 1.9299
Suvretta Funds [Member]
Related Party Transaction [Line Items]
Sale of Stock, Number of Shares Issued	1,481,481
Sale of Stock, Price Per Share	$ 13.5
Suvretta Capital [Member]
Related Party Transaction [Line Items]
Description of agreement with affilated entity for waive		Suvretta Capital waived the 19.99% beneficial ownership limitation set forth in each of the warrants held by the Suvretta Funds, and (ii) Suvretta Capital and the Company agreed that Suvretta Capital will not be permitted to complete an exercise of the warrants held by the Suvretta Funds to the extent the beneficial ownership (calculated as provided in the applicable warrants) of Suvretta Capital in the Company following such exercise would exceed 49.9%.