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Agreements with Horizon - Summary of the Transaction Price Allocated to Each Performance Obligation (Detail)
$ in Thousands
Dec. 31, 2023
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Transaction Price $ 55,000
AD phase 2 research services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Transaction Price 25,417
AA phase 2 research services  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Transaction Price 18,265
Material right for the purchase of ADX-914  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Transaction Price $ 11,318