Name:	ugp_BrazilianRealDenominatedLoans
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Currency interest rate hedging instrument.

No definition available.

Name:	ugp_CurrencyInterestRateHedgingInstruments
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Disclosure of further information and subclassifications of Loans, classified in a manner appropriate to the entity's policies and operations.

No definition available.

Name:	ugp_CurrentDebt
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Disclosure of further information and subclassifications of Loans, classified in a manner appropriate to the entity's policies and operations.

No definition available.

Name:	ugp_ForeignCurrencyDenominatedLoans
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The entity shall disclose information that enables users of the financial statements to evaluate changes in liabilities arising from financing activities, including changes in cash flows and non-cash flows (IAS 7).

No definition available.

Name:	ugp_LoanDebt
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Disclosure of further information and subclassifications of Loans, classified in a manner appropriate to the entity's policies and operations.

No definition available.

Name:	ugp_LoanDescription
Namespace Prefix:	ugp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Disclosure of further information and subclassifications of Loans, classified in a manner appropriate to the entity's policies and operations.

No definition available.

Name:	ugp_LoanIndexCurrency
Namespace Prefix:	ugp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

An entity shall disclose a maturity analysis for non-derivative and derivative financial liabilities.

No definition available.

Name:	ugp_LoanMaturityDate
Namespace Prefix:	ugp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Disclosure of further information and subclassifications of Loans, classified in a manner appropriate to the entity's policies and operations.

No definition available.

Name:	ugp_NoncurrentDebt
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Summary of loans debentures and finance leases.

No definition available.

Name:	ugp_SummaryOfLoansDebenturesAndFinanceLeasesLineItems
Namespace Prefix:	ugp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Total foreign currency and brazilian reais.

No definition available.

Name:	ugp_TotalForeignCurrencyAndBrazilianReais
Namespace Prefix:	ugp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Disclosure of further information and subclassifications of Loans, classified in a manner appropriate to the entity's policies and operations.

No definition available.

Name:	ugp_WeightedAverageFinancialChargesLoans
Namespace Prefix:	ugp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan5Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan6Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan7Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan8Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan9Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan10Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan11Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan12Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan13Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan14Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan15Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan16Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan17Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan18Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan19Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan20Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan21Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan22Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfLiabilitiesAxis=ugp_Loan23Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: