Restricted short-term deposits (Details) - USD ($) $ in Thousands |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Restricted Cash And Investments [Line Items] | ||
| Restricted short-term deposits | $ 20,722 | $ 57,243 |
| Loans Payable | ||
| Restricted Cash And Investments [Line Items] | ||
| Debt Instrument, Collateral Amount | $ 37,000 | $ 85,000 |