v3.26.1
Basis of Presentation - Changes in the scope of consolidation (Details)
1 Months Ended 12 Months Ended
Nov. 01, 2025
Nov. 30, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Biotek America LLC ("ITK JV")          
Basis of presentation.          
Percentage of total voting rights sold in joint operation     75.00%    
Grifols Canada Plasma, Inc. (formerly Canadian Plasma Resources Corporation)          
Basis of presentation.          
Percentage of voting interests acquired 50.10%   50.10%    
Percentage of total voting rights held in associate     50.10%    
Medcom Advance, S.A.          
Basis of presentation.          
Percentage of total voting rights sold in associate     45.00%    
Mecwins, S.A          
Basis of presentation.          
Percentage of total voting rights sold in associate       24.59%  
Araclon Biotech, S.L.          
Basis of presentation.          
Percentage of voting interests acquired     1.27%    
Percentage of total voting rights held in subsidiary     77.12%    
Biotest AG          
Basis of presentation.          
Percentage of voting interests acquired     2.11%    
Percentage of total voting rights held in subsidiary     99.25%    
Biotest MidCo GmbH (formerly Blitz F25-957 GmbH)          
Basis of presentation.          
Percentage of voting interests acquired     100.00%    
Percentage of total voting rights held in subsidiary     100.00%    
Biotest Management GmbH (formerly Blitz F25-958 GmbH)          
Basis of presentation.          
Percentage of voting interests acquired     100.00%    
Percentage of total voting rights held in subsidiary     100.00%    
Biotest (UK) Ltd.          
Basis of presentation.          
Percentage of voting interests acquired         100.00%
Percentage of total voting rights held in subsidiary         100.00%
Percentage of total voting rights sold in subsidiary     100.00%    
G Pyrenees Research Cntr          
Basis of presentation.          
Percentage of voting interests acquired       20.00%  
Percentage of total voting rights held in subsidiary       100.00%  
Percentage of total voting rights sold in subsidiary     100.00%    
Grifols Colombia, Ltda          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary     100.00%    
Haema Plasma Kft.          
Basis of presentation.          
Percentage of total voting rights held in subsidiary       100.00%  
Grifols Malaysia Sdn Bhd          
Basis of presentation.          
Percentage of voting interests acquired   51.00%   51.00%  
Percentage of total voting rights held in subsidiary       100.00%  
Biotest Italy, S.R.L.          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary       100.00%  
Biotest Medical, S.L.U.          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary       100.00%  
Biotest Farmaceutica LTDA          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary       100.00%  
Biotest France SAS          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary       100.00%  
Kiro Grifols S.L. (Spain)          
Basis of presentation.          
Percentage of voting interests acquired         10.00%
Percentage of total voting rights held in subsidiary         100.00%
Albajuna Therapeutics, S.L. Inc.          
Basis of presentation.          
Percentage of voting interests acquired         51.00%
Percentage of total voting rights held in subsidiary         100.00%
Biomat Holdco, LLC.          
Basis of presentation.          
Percentage of voting interests acquired         100.00%
Percentage of total voting rights held in subsidiary         100.00%
Grifols Plasma Canada - Ontario Inc          
Basis of presentation.          
Percentage of voting interests acquired         100.00%
Percentage of total voting rights held in subsidiary         100.00%
Grifols Escrow Issuer S.A          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary         100.00%
Gripdan Invest, S.L          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary         100.00%
Access Biologicals LLC          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary         100.00%
Chiquito Acquisition Corp.          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary         100.00%
Geotech LLC          
Basis of presentation.          
Percentage of total voting rights sold in subsidiary         100.00%