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Impairment losses of financial assets (Details) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Impairment losses of financial assets
Loss on impairment adjustment of loans and advances to customers	R$ (649,510)	R$ (239,840)	R$ (161,265)
Expected loss for securities - FVOCI	(18,948)	(12,701)
Expected loss for securities - amortized cost	(843)	(759)	(1,199)
Recovery of written-off credits	73,719	39,612	23,894
Total impairment loss on financial assets	R$ (595,581)	R$ (213,688)	R$ (138,570)

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- Definition

Represents the amount of expected loss of financial assets measured at amortized cost.

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- Definition

Represents the amount of expected loss of financial assets measured at fair value through other comprehensive income.

+ References

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- Definition

The gain on the recovery of loans and advances previously written off.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard
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- Definition

The amount of impairment loss on financial assets. [Refer: Financial assets; Impairment loss]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 20
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_20_e&doctype=Standard&book=b
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- Definition

The amount of impairment loss recognised in profit or loss for loans and advances. [Refer: Impairment loss recognised in profit or loss]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard
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