v3.25.4
Long Term Debt - Credit Agreement Narrative (Details) - Line of Credit - Pulmonx International Sarl
12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Apr. 01, 2023
Mar. 31, 2022
installment
May 31, 2020
USD ($)
May 31, 2020
CHF (SFr)
Debt Instrument [Line Items]            
Repayments of debt | $ $ 100,000 $ 100,000        
COVID-19 Credit Agreement            
Debt Instrument [Line Items]            
Maximum borrowing capacity         $ 500,000 SFr 500,000
Stated interest rate     1.50%      
Number of installments | installment       12