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Presentation of Financial Statements and Summary of Significant Accounting Policies - Summary of Foreign Subsidiaries (Detail)
 12 Months Ended
Dec. 31, 2019
Oxiteno Mexico S.A. de C.V. [member]  
Disclosure of foreign subsidiaries [line items]  
Functional currency Mexican Peso
Location Mexico
Oxiteno servicios corporativos S.A. de C.V.[member]  
Disclosure of foreign subsidiaries [line items]  
Functional currency Mexican Peso
Location Mexico
Oxiteno servicios industriales S.A. de C.V.[member]  
Disclosure of foreign subsidiaries [line items]  
Functional currency Mexican Peso
Location Mexico
Oxiteno USA LLC [member]  
Disclosure of foreign subsidiaries [line items]  
Functional currency U.S. Dollar
Location United States
Oxiteno Uruguay [member]  
Disclosure of foreign subsidiaries [line items]  
Functional currency U.S. Dollar
Location Uruguay