XML 123 R96.htm IDEA: XBRL DOCUMENT
v3.19.1

Trade Receivables and Reseller Financing - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2018
Bottom of range [member] |
Summary of trade receivables [line items] |
Terms of reseller financing | 12 months
Reseller financing rate per month | 0.00%
Top of range [member] |
Summary of trade receivables [line items] |
Terms of reseller financing | 60 months
Reseller financing rate per month | 1.00%
Average [member] |
Summary of trade receivables [line items] |
Terms of reseller financing | 40 months

X
- Definition Reseller financing rate per month. + References No definition available. + Details
Name: | ugp_ResellerFinancingRatePerMonth
Namespace Prefix: | ugp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Summary of trade receivables. + References No definition available. + Details
Name: | ugp_SummaryOfTradeReceivablesLineItems
Namespace Prefix: | ugp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Terms of reseller financing. + References No definition available. + Details
Name: | ugp_TermsOfResellerFinancing
Namespace Prefix: | ugp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ugp_AverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |