v3.22.4
Employee future benefits - Included in Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of net defined benefit liability (asset) [line items]    
Actuarial gain on defined benefit plans $ 1,514 $ 2,170
Net defined benefit pension plan liability    
Disclosure of net defined benefit liability (asset) [line items]    
Actuarial gain on defined benefit plans 1,546 2,172
Net other post-retirement benefit plan liability    
Disclosure of net defined benefit liability (asset) [line items]    
Actuarial gain on defined benefit plans $ (32) $ (2)