Description of useful life used for property, plant and equipment. [Refer: Property, plant and equipment]

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Increase in property plant and equipment.

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Residual value of initial cost percentage.

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Significant Judgments, Estimates and Assumptions - Additional Information (Detail) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of accounting judgements and estimates [line items]
Increase in depreciation expense due to a change in useful life		R$ 4,602
Provision for antifraud losses [member]
Disclosure of accounting judgements and estimates [line items]
Chargeback occurring days	120 days
Provision	R$ 925	R$ 2,861
Pin pads and POS [member]
Disclosure of accounting judgements and estimates [line items]
Property and equipment and intangible assets useful lives	3 years	3 years	5 years
Residual value of initial cost percentage		30.00%
FIDCs AR [member] \| Subordinated quotas [member]
Disclosure of accounting judgements and estimates [line items]
Percentage of ownership interest	10.00%
FIDCs AR [member] \| Senior quotas [member]
Disclosure of accounting judgements and estimates [line items]
Percentage of ownership interest	90.00%
TAPSO [member] \| Subordinated quotas [member]
Disclosure of accounting judgements and estimates [line items]
Percentage of ownership interest	99.00%
TAPSO [member] \| Senior quotas [member]
Disclosure of accounting judgements and estimates [line items]
Percentage of ownership interest	1.00%
FIDC SOMA [member] \| Subordinated quotas [member]
Disclosure of accounting judgements and estimates [line items]
Percentage of ownership interest	100.00%