v3.26.1
SHAREHOLDERS’ EQUITY - Share capital (Details) - BRL (R$)
R$ / shares in Units, R$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Disclosure of classes of share capital [line items]      
Share capital   R$ 24,235,546 R$ 19,235,546
% 100.00% 100.00%  
Common Stock Price   R$ 51.45 R$ 61.78
Treasury (Note 24.5)      
Disclosure of classes of share capital [line items]      
% 1.97% 2.23%  
Treasury (Note 24.5) | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   28,208,827 24,875,787
Share Capital      
Disclosure of classes of share capital [line items]      
Share capital   R$ 24,269,281  
Share issue related cost   R$ 33,735  
Share Capital | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   1,264,117,615 1,264,117,615
Suzano Holding S.A.      
Disclosure of classes of share capital [line items]      
% 29.08% 29.08%  
Suzano Holding S.A. | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   367,612,329 367,612,329
Controller      
Disclosure of classes of share capital [line items]      
% 15.51% 15.51%  
Controller | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   196,065,636 196,065,636
Managements and related persons      
Disclosure of classes of share capital [line items]      
% 2.59% 2.54%  
Managements and related persons | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   32,157,608 32,784,440
Alden Fundo de Investimento em Ações      
Disclosure of classes of share capital [line items]      
% 2.07% 2.15%  
Alden Fundo de Investimento em Ações | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   27,154,744 26,154,744
Controlling Shareholders      
Disclosure of classes of share capital [line items]      
% 49.25% 49.28% 49.25%
Controlling Shareholders | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   622,990,317 622,617,149
Other shareholders      
Disclosure of classes of share capital [line items]      
% 48.78% 48.49%  
Other shareholders | Our common shares without par value*      
Disclosure of classes of share capital [line items]      
Quantity   612,918,471 616,624,679