XML 164 R108.htm IDEA: XBRL DOCUMENT v3.22.1
Employee benefit plans - Summary of movement in the defined benefit obligation over the year (Details) - Present value of defined benefit obligation - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of net defined benefit liability (asset) [line items]    
Beginning Balance $ (13,830) $ (27,683)
Current service cost (2,070) (2,446)
Past service cost 113 0
Interest cost (549) (1,186)
Actuarial (loss) gain (115) (2,116)
Assets distributed on settlement 0 18,091
Benefit payments 3,789 1,352
Exchange gain (loss) 3,720 158
Ending Balance (8,942) (13,830)
Employee benefit plans    
Disclosure of net defined benefit liability (asset) [line items]    
Beginning Balance (11,109) (9,317)
Current service cost (2,070) (2,446)
Past service cost 113 0
Interest cost (549) (639)
Actuarial (loss) gain (115) (2,664)
Assets distributed on settlement 0 3,146
Benefit payments 1,049 1,172
Exchange gain (loss) 3,739 (361)
Ending Balance (8,942) (11,109)
SERP    
Disclosure of net defined benefit liability (asset) [line items]    
Beginning Balance (2,721) (18,366)
Current service cost 0 0
Past service cost 0 0
Interest cost 0 (547)
Actuarial (loss) gain 0 548
Assets distributed on settlement 0 14,945
Benefit payments 2,740 180
Exchange gain (loss) (19) 519
Ending Balance $ 0 $ (2,721)