Common Stock - Summary of Reserved Shares of Common Stock (Details) - shares	Mar. 31, 2026	Dec. 31, 2025
Class of Stock [Line Items]
Voting common stock reserved for future issuance	15,711,443	12,909,590
Common Stock Incentive Awards Issued and Outstanding
Class of Stock [Line Items]
Voting common stock reserved for future issuance	9,590,346	9,142,493
Non-voting common stock as converted
Class of Stock [Line Items]
Voting common stock reserved for future issuance	2,727,511	2,727,511
Common Stock Available for Future Grant Under 2025 Equity Incentive Plan
Class of Stock [Line Items]
Voting common stock reserved for future issuance	2,548,327	589,586
Common Stock Available for Future Issuance Under the Employee Stock Purchase Plan
Class of Stock [Line Items]
Voting common stock reserved for future issuance	845,259	450,000

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.

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+ Details

MapLight Therapeutics, Inc. 10-Q