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Ultracargo - Fire Accident in Santos - Summary of remaining balance of trade payables customers and third parties indemnification (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of trade payables [abstract] |  |
Beginning balance |  | R$ 99,863
Additions | R$ 21,757 | 13,096
Write-offs | (25,986) | (2,434)
Payments | (64,486) | (38,309)
Ending balance | R$ 3,501 | R$ 72,216

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- Definition Additions to customers and third parties payables. + References No definition available. + Details
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- Definition Customers and third parties payables beginning balance. + References No definition available. + Details
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- Definition Customers and third parties payables ending balance. + References No definition available. + Details
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Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
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- Definition Disclosure of trade payables. + References No definition available. + Details
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Balance Type: | na
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- Definition Payments to customers and third parties payables. + References No definition available. + Details
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- Definition Write offs of customers and third parties payables. + References No definition available. + Details
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Namespace Prefix: | ugp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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