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Share-based payment arrangements - Transaction based incentive plan 2019 (Cash-settled) (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Jan. 08, 2019
shares
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2020
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2019
tranche
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]                
Vesting period             5 years  
Number of vesting tranches | tranche               4
Expense from share-based payment transactions with employees | $         $ 3,945 $ 2,411 $ 761  
Transaction based incentive plan 2019 | Phantom stock units                
Disclosure of terms and conditions of share-based payment arrangement [line items]                
Vesting period               5 years
Equity instruments granted (in shares) | shares 1,200,000              
Number of phantom stocks outstanding (in shares) | shares         0      
Expense from share-based payment transactions with employees | $         $ 0 $ 7,400 $ 1,000  
Transaction based incentive plan 2019 | Tranche one | Phantom stock units                
Disclosure of terms and conditions of share-based payment arrangement [line items]                
Annual vesting percentage       12.00%       12.00%
Target share price (in USD per share)               $ 12
Transaction based incentive plan 2019 | Tranche two | Phantom stock units                
Disclosure of terms and conditions of share-based payment arrangement [line items]                
Annual vesting percentage     19.00%         19.00%
Target share price (in USD per share)               $ 14
Transaction based incentive plan 2019 | Tranche three | Phantom stock units                
Disclosure of terms and conditions of share-based payment arrangement [line items]                
Annual vesting percentage   25.00%           25.00%
Target share price (in USD per share)               $ 16
Transaction based incentive plan 2019 | Tranche Four | Phantom stock units                
Disclosure of terms and conditions of share-based payment arrangement [line items]                
Annual vesting percentage   44.00%           44.00%
Target share price (in USD per share)               $ 18