Share-based compensation - Additional information (Details) $ in Thousands	1 Months Ended	3 Months Ended
Mar. 31, 2021 shares individual	Mar. 31, 2022 USD ($) shares component	Mar. 31, 2021 USD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of components of share-based compensation plan \| component		5
Share-based compensation \| $		$ 1,094	$ 378
Number of options granted (in shares)		34,667	92,551
Senior Executive
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options granted (in shares)	63,992
Number of individuals granted with excess options \| individual	6
PSUs
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of units outstanding (in shares)	0	0	0

Number Of Components In Share-Based Payment Arrangement

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- Definition

Number Of Individuals Granted In Share-Based Payment Arrangement

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

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- Definition

The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2021-03-24

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- Definition

The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Number 2
-IssueDate 2021-01-01
-Paragraph 45
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-URIDate 2021-03-24

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- Definition

The number of share options granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 2
-IssueDate 2021-01-01
-Paragraph 45
-Subparagraph b
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-URIDate 2021-03-24

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