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Equity (Tables) | 12 Months Ended
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Dec. 31, 2021
[custom:ScheduleOfTreasurySharesMovement] | The following table illustrates the number and movements in treasury shares during the period:
| Number of shares | Average price (in Brazilian Reais)
Outstanding at January 1, 2021 | - |
Repurchased | 2,142,051 | 99.76
Transferred from exercise of options | (442,669) | 124.08
Transferred from shares contribution | (44,455) | 111.94
Outstanding at December 31, 2021 | 1,654,927 | 92.23

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- References No definition available. + Details
Name: | afya_ScheduleOfTreasurySharesMovement
Namespace Prefix: | afya_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration