v3.26.1
The Company - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 04, 2025
Mar. 14, 2025
Mar. 07, 2025
Mar. 31, 2025
Apr. 30, 2026
Apr. 30, 2025
Nature Of Operations And Liquidity [Line Items]            
Cash, cash equivalents, and investments         $ 262,201  
Par value         $ 1 $ 1
Parent contribution of common stock         105,808  
Net losses         $ 131,612 $ 113,814
Cash used in operating activities         81,703 77,608
Accumulated deficit         $ 651,861 $ 520,249
West Affum Intermediate Holdings Corp.            
Nature Of Operations And Liquidity [Line Items]            
Entity Incorporation, Date of Incorporation         Aug. 06, 2020  
Kestra Medical Technologies, Ltd            
Nature Of Operations And Liquidity [Line Items]            
Parent contribution of common stock         19,885,382  
Common Shares            
Nature Of Operations And Liquidity [Line Items]            
Shares issued 900,000          
IPO            
Nature Of Operations And Liquidity [Line Items]            
Initial public offering date     Mar. 07, 2025      
IPO | Kestra Medical Technologies, Ltd | Directly Owns            
Nature Of Operations And Liquidity [Line Items]            
Percentage of ownership of common shares     100.00%      
IPO | Kestra Medical Technologies, Ltd | Indirectly Owns            
Nature Of Operations And Liquidity [Line Items]            
Percentage of ownership of common shares     100.00%      
IPO | Common Shares            
Nature Of Operations And Liquidity [Line Items]            
Shares issued     11,882,352      
Additional common stock purchased by underwriters pursuant to option to purchase additional shares   1,782,352        
Sale of stock, number of shares issued in transaction subject to vesting conditions     32,485      
Par value     $ 1      
Initial public offering, Price per share   $ 17 $ 17      
Gross proceeds from initial public offering       $ 215,789    
IPO offering costs       $ 5,398    
IPO | Common Shares | West Affum Holdings, L.P            
Nature Of Operations And Liquidity [Line Items]            
Shares issued     37,683,952      
Parent contribution of common stock     19,885,382      
IPO | Common Shares | Kestra Medical Technologies, Ltd            
Nature Of Operations And Liquidity [Line Items]            
Parent contribution of common stock     105,808      
Public Underwritten Offering | Common Shares            
Nature Of Operations And Liquidity [Line Items]            
Shares issued 6,900,000          
Initial public offering, Price per share $ 23          
Gross proceeds from initial public offering $ 149,291