v3.25.2
Long-term Debt - Additional Information (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2025
USD ($)
Installment
Dec. 17, 2024
USD ($)
Debt Instrument [Line Items]      
Number of installments | Installment   11  
Interest expense $ 1,376 $ 2,737  
Principal amount of term loans $ 50,000 $ 50,000  
Loan And Security Agreement [Member] | Oxford [Member]      
Debt Instrument [Line Items]      
Debt instrument, face amount     $ 200,000
Debt instrument interest period   48 months  
Debt instrument term   60 months  
Debt instrument maturity extension period   12 months  
Debt Instrument interest rate stated percentage 5.50% 5.50%  
Debt instrument payment terms   The loan carries an interest-only period of 48 months and a total term of 60 months; provided that if specific milestones are achieved prior to September 30, 2026, the interest-only period and maturity date will be extended by 12 months. The term loans accrue interest, payable monthly, at a floating rate equal to, subject to certain conditions, (a) 1-month term SOFR plus (b) 5.50%. The principal portion of the loan is due in eleven equal monthly installments beginning February 1, 2029, through December 1, 2029.  
Debt instrument date of first required payment   Feb. 01, 2029  
Debt instrument date of final required payment   Dec. 01, 2029  
Debt instrument frequency of periodic payment   monthly  
Debt instrument maturity date description   However, if a specified milestone is achieved on or after December 17, 2025, then the term loan will begin to amortize in equal monthly installments beginning on February 1, 2030, and the maturity date will be extended to December 1, 2030  
Final principal fee payment percentage   5.00%  
Debt instrument final interest payment   $ 2,500  
Amount borrowed $ 50,000 50,000  
Long-term accrued interest payable 271 271  
Loan issuance costs 174 174  
Principal amount of term loans $ 50,000 $ 50,000  
Percentage of increase in applicable rate of interest under termination of the lenders' commitments   5.00%  
Debt instrument fee 6.50% 6.50%  
Loan And Security Agreement [Member] | Oxford [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Principal amount of term loans $ 50,000 $ 50,000  
Loan And Security Agreement [Member] | FDA Approval OF VYKATXR Tranche one [Member] | Oxford [Member]      
Debt Instrument [Line Items]      
Debt instrument additional borrowing amount 50,000 $ 50,000  
Debt instrument date of final borrowings   Sep. 30, 2025  
Loan And Security Agreement [Member] | FDA Approval OF VYKATXR Tranche Two [Member] | Oxford [Member]      
Debt Instrument [Line Items]      
Debt instrument additional borrowing amount 25,000 $ 25,000  
Debt instrument date of first borrowings   Oct. 01, 2025  
Debt instrument date of final borrowings   Sep. 30, 2026  
Loan And Security Agreement [Member] | Contingent upon certain commercial milestones [Member] | Oxford [Member]      
Debt Instrument [Line Items]      
Debt instrument additional borrowing amount 25,000 $ 25,000  
Loan And Security Agreement [Member] | Mutual Consent of Soleno and Oxford [Member] | Oxford [Member]      
Debt Instrument [Line Items]      
Debt instrument additional borrowing amount $ 50,000 $ 50,000  
Loan And Security Agreement [Member] | Milestone Achieved on or After December 17, 2025 [Member] | Oxford [Member]      
Debt Instrument [Line Items]      
Debt instrument date of first required payment   Feb. 01, 2030  
Debt instrument date of final required payment   Dec. 01, 2030  
Loan And Security Agreement [Member] | Milestone Achieved on or After December 17, 2025 [Member] | Oxford [Member] | 5% Interest on Total Loan Amount on Final Principal Payment [Member]      
Debt Instrument [Line Items]      
Debt instrument maturity start date   Feb. 01, 2030  
Debt instrument maturity end date   Dec. 01, 2030