Other operating income - Other Incentives (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
Other operating income | |||
Research and development incentives | $ 19,502 | $ 13,970 | $ 10,257 |
Incentive refund period | 5 years | ||
Payroll tax rebates | $ 8,576 | $ 12,621 | $ 9,095 |