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Shareholders' equity (Tables)
 12 Months Ended
Dec. 31, 2024
Disclosure of classes of share capital [abstract]  
Disclosure of classes of share capital [text block]
December 31, 2024December 31, 2023
QuantityR$ (whole numbers)QuantityR$ (whole numbers)
Initial balance55,429,851 1,443,108,000 261,920,439 261,920,439 
Issuance new shares— — 177,977,323 263,004,000 
Capital reduction - transaction with HPX Corp, pursuant to the terms of the Business Combination— — (439,897,762)(524,924,439)
Ambipar Participações e Empreendimentos S.A.— — 39,234,746 841,029,236 
PIPE investors— — 13,323,800 555,892,823 
HPX Corp.— — 1,916,100 6,333,076 
Others Investors— — 955,205 39,852,865 
Final balance55,429,851 1,443,108,000 55,429,851 1,443,108,000 
Summary of business combination
R$
Cost of shares issued to HPX shareholders (1)146,741 
Fair value of Earn-out shares for Ambipar Holding (2)(44,240)
Adjusted cost of shares issued to HPX shareholders102,501 
HPX Assets48,083 
HPX Liabilities(49,676)
HPX net assets on 3/3/2023(1,593)
Stock listing expense100,909 
1)    Considering the amount of US$9.89 per share on 02/28/23, date of the EGM approving the transaction and exchange of R$5.2037;
2)    Fair value estimated based on a Monte Carlo simulation model.
Summary of earning per share
Earnings per shareDecember 31, 2024December 31, 2023December 31, 2022
Earnings per share operations attributable to shareholders of the parent company before deductions58,759 17,176 187,875 
Number of ordinary shares (basic)55,429,851 89,844,949 261,920,439 
Basic earnings per share (in Reais)1.06006 0.19117 0.71730 
Earnings per shareDecember 31, 2024December 31, 2023December 31, 2022
Earnings per share operations attributable to shareholders of the parent company before deductions58,759 17,176 187,875 
Number of ordinary shares (diluted)71,609,841 103,328,274 261,920,439 
Diluted earnings per share (in Reais)0.82054 0.16623 0.71730 
Summary of capital transaction
Response
Inversiones Disal Emergencia
Assets and liabilities acquired at fair value (*)
Cash and cash equivalents1,005 
Other assets25,650 
Other liabilities(323)
Total identifiable net assets26,332 
Total amount of consideration transferred144,430 
(-) Cash acquired(1,005)
(-) Assumed value of the obligation to pay— 
Cash paid, net of cash received/receivable143,425 
Determination of goodwill (*)
Total amount of consideration, net144,430 
Total identifiable net assets(26,332)
Goodwill paid on expected future profitability118,098 
Date of additional acquisition06/28/2021
Company that acquired controlEmergência Participações S.A.
Value of acquisitionUS$ 26,185 (thousand)
Percentage acquired100 %