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Employee benefits (Tables)
 12 Months Ended
Dec. 31, 2023
Employee Benefits  
Schedule of provisions for employee benefits
Classes of benefits and expenses by employeeAs of
December 31,
2023		As of
December 31,
2022
ThUS$ThUS$
Current
Profit sharing and bonuses— 2,270 
Performance bonus and operational targets23,946 33,106 
Total23,946 35,376 
Non-current  
Profit sharing and bonuses18,428 8,973 
Severance indemnity payments43,578 34,899 
Total62,006 43,872 
Schedule of post employment benefit obligations
Reconciliation Changes in the benefit obligationAs of
December 31,
2023		As of
December 31,
2022		As of
December 31,
2021
ThUS$ThUS$ThUS$
Benefit obligation at the beginning of the year279 9,550 9,864 
Current cost of service— — — 
Interest cost12 255 240 
Actuarial loss180 (1,357)(135)
Settlement— (7,739)— 
Benefits paid(185)(430)(419)
Total 286 279 9,550 
Reconciliation
Changes in plan assets		As of
December 31,
2023		As of
December 31,
2022		As of
December 31,
2021
ThUS$ThUS$ThUS$
Fair value of plan assets at the start of the year4,982 13,497 12,888 
Real return (loss) in the plan assets584 (346)1,028 
Benefits paid(185)(430)(419)
Settlement— (7,739)— 
Fair value of plan assets at the end of the year5,381 4,982 13,497 
Non-current-assets5,095 4,703 3,947 
Elements not yet recognized as components of the cost of periodic net pensions:   
Net actuarial income at the beginning of the year59 1,039 192 
Settlement— (1,627)— 
Gain190 647 847 
Adjustment to recognize the minimum pension obligation249 59 1,039 
Cost of service or benefits received during the yearAs of
December 31,
2023		As of
December 31,
2022		As of
December 31,
2021
ThUS$ThUS$ThUS$
Financial cost12 255 240 
Real loss in plan assets(214)(363)(316)
Settlement— (1,627)— 
Net periodic pension expenses(202)(1,735)(76)
Schedule of staff severance indemnities
As of December 31, 2023, and 2022, severance indemnities calculated at the actuarial value are as follows:
Staff severance indemnitiesAs of
December 31,
2023		As of
December 31,
2022		As of
December 31,
2021
ThUS$ThUS$ThUS$
Opening balance(34,899)(27,099)(32,199)
Current cost of service(4,624)(4,204)(4,978)
Interest cost(2,236)(1,928)(1,303)
Actuarial gain loss(5,947)(5,305)3,999 
Exchange rate difference769 551 4,971 
Benefits paid during the year3,359 3,086 2,411 
Total(43,578)(34,899)(27,099)
Schedule of employee Actuarial assumption rate
The liability recorded for staff severance indemnity is valued at the actuarial value method, using the following actuarial assumptions:
Actuarial assumptionsAs of
December 31,
2023		As of
December 31,
2022		As of
December 31,
2021		Annual/Years
Mortality rate
RV - 2020/CB - 2020
RV - 2014
RV - 2014
Discount interest rate5.32%5.12%5.67%
Inflation rate3.00%3.41%3.20%
Voluntary retirement rate:
Men3.82 %6.49 %6.49 %Annual
Women3.82 %6.49 %6.49 %Annual
Salary increase4.01 %3.00 %3.00 %Annual
Retirement age:
Men656565Years
Women606060Years
Schedule of sensitivity analysis of assumptions
As of December 31, 2023, 2022 and 2021, the Company has conducted a sensitivity analysis of the main assumptions of the actuarial calculation, determining the following:
Sensitivity analysis as of December 31, 2023Effect + 100 basis
points		Effect - 100 basis
points
ThUS$ThUS$
Discount rate(2,575)2,898 
Employee turnover rate(338)378 
Sensitivity analysis as of December 31, 2022Effect + 100 basis
points		Effect - 100 basis
points
ThUS$ThUS$
Discount rate(2,090)2,352 
Employee turnover rate(274)307 
Sensitivity analysis as of December 31, 2021Effect + 100 basis
points		Effect - 100 basis
points
ThUS$ThUS$
Discount rate(1,614)1,817 
Employee turnover rate(212)237