XML 186 R182.htm IDEA: XBRL DOCUMENT
v3.20.1

Risks and Financial Instruments - Sensitivity analysis of assets and liabilities in foreign currency (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Scenario I [member] |  |
Summary of risks and financial instruments [line items] |  |
Income statement effect | R$ 45.2 | R$ 28.3
Equity effect | (194.1) | (200.9)
Total | (148.9) | (172.6)
Income statement effect | (45.2) | (28.3)
Equity effect | 194.1 | 200.9
Total | 148.9 | 172.6
Scenario II [member] |  |
Summary of risks and financial instruments [line items] |  |
Income statement effect | 113.0 | 70.7
Equity effect | (485.3) | (502.2)
Total | (372.3) | (431.5)
Income statement effect | (113.0) | (70.7)
Equity effect | 485.3 | 502.2
Total | 372.3 | 431.5
Scenario III [member] |  |
Summary of risks and financial instruments [line items] |  |
Income statement effect | 226.0 | 141.4
Equity effect | (970.6) | (1,004.4)
Total | (744.6) | (863.0)
Income statement effect | (226.0) | (141.4)
Equity effect | 970.6 | 1,004.4
Total | R$ 744.6 | R$ 863.0

X
- Definition Effects regarding Real devaluation or appreciation risk. + References No definition available. + Details
Name: | ugp_IncomeStatementEffectDecrease
Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effects regarding Real devaluation or appreciation risk. + References No definition available. + Details
Name: | ugp_IncomeStatementEffectDecreaseShareHoldersEquityIncreaseNetEffect
Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effects regarding Real devaluation or appreciation risk. + References No definition available. + Details
Name: | ugp_IncomeStatementEffectIncrease
Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effects regarding Real devaluation or appreciation risk. + References No definition available. + Details
Name: | ugp_IncomeStatementEffectincreaseShareholdersEquityDecreaseNetEffect
Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effects regarding Real devaluation or appreciation risk. + References No definition available. + Details
Name: | ugp_ShareholdersEquityEffectDecrease
Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effects regarding Real devaluation or appreciation risk. + References No definition available. + Details
Name: | ugp_ShareholdersEquityEffectincrease
Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Summary of risks and financial instruments. + References No definition available. + Details
Name: | ugp_SummaryOfRisksAndFinancialInstrumentsLineItems
Namespace Prefix: | ugp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ugp_ScenarioAxis=ugp_Scenario1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ugp_ScenarioAxis=ugp_Scenario2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ugp_ScenarioAxis=ugp_Scenario3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |