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Cash and cash equivalents - Additional Information (Detail)
Dec. 31, 2021
Dec. 31, 2020
CAYMAN ISLANDS    
Disclosure Of Cash And Cash Equivalents [Line Items]    
percentage of cash and cash equivalent held 84.00% 61.00%
BRAZIL    
Disclosure Of Cash And Cash Equivalents [Line Items]    
percentage of cash and cash equivalent held 6.00% 20.00%
other subsidiaries of the Group [Member]    
Disclosure Of Cash And Cash Equivalents [Line Items]    
percentage of cash and cash equivalent held 10.00% 19.00%