v3.26.3
Cash and cash equivalents, margin cash and long-term investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Cash and cash equivalents [abstract]        
Cash on hand and at banks $ 2,447,345 $ 2,557,740    
CDB (bank certificates of deposit) / Overnight investments 1,606,014 1,937,761    
National Treasury Bill (Tesouro Selic) 95,403 69,635    
Total cash and cash equivalents 4,148,762 4,565,136 $ 3,558,215 $ 5,613,672
Margin cash        
CME (Chicago Mercantile Exchange) Margin investments 36,648 105,993    
Investments in Treasury Bills 66,061 53,569    
Current Margin Cash 102,709 159,562    
Investment funds 52,030 45,780    
Total $ 4,303,501 $ 4,770,478