Employee benefits (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of detailed information about provision for employee benefits [Abstract]

Disclosure of detailed information about provision for employee benefits [Text Block]

Classes of benefits and expenses by employee	As of December ‎ 31, 2019		As of December ‎ 31, 2018
	ThUS$		ThUS$
Current
Profit sharing and bonuses		16,387		20,085
Total		16 ,387		20,085
Non-current
Profit sharing and bonuses		8,026		8,831
Severance indemnity payments		27,814		28,233
Total		35, 840		37,064

Disclosure of detailed information about post employment benefit obligations [Text Block]

Reconciliation	As of December ‎ 31, 2019			As of December ‎ 31, 2018			As of December ‎ 31, 2017
Changes in the benefit obligation	ThUS$			ThUS$			ThUS$
Benefit obligation at the beginning of the year		8,657			8,755			8,185
Service cost		-			-			2
Interest cost		336			319			359
Actuarial loss		984			63			556
Benefits paid		(391	)		(480	)		(347	)
Total		9,586			8,657			8,755

Reconciliation	As of December ‎ 31, 2019			As of December ‎ 31, 2018			As of December ‎ 31, 2017
Changes in the plan assets	ThUS$			ThUS$			ThUS$
Fair value of plan assets at the beginning of the year		8,404			8,751			7,404
Actual return (loss) in plan assets		741			133			1,694
Benefits paid		(391	)		(480	)		(347	)
Fair value of plan assets at the end of the year		8,754			8,404			8,751
Financing status		(832	)		(253	)		(4	)

Items not yet recognized as net periodic pension cost components:
Net actuarial loss at the beginning of the year		(2,614	)		(2,614	)		(3,432	)
Amortization during the year		242			160			219
Net estimated gain or loss occurred during the year		(854	)		(568	)		599
Adjustment to recognize the minimum pension obligation		(3,226	)		(3,022	)		(2,614	)

Service cost or benefits received during the year	As of December ‎ 31, 2019			As of December ‎ 31, 2018			As of December ‎ 31, 2017
	ThUS$			ThUS$			ThUS$
Service cost or benefits received during the year		-			-			2
Interest cost in benefit obligation		336			319			359
Actual return in plan assets		741			133			1,694
Amortization of prior year losses		242			160			219
Net gain during the year		(854	)		(568	)		599
Net periodic pension expense		(33	)		(159	)		41

Disclosure of net defined benefit liability (asset) [text block]

As of December 31, 2019 and 2018, severance indemnities calculated at the actuarial value are as follows:

Classes of benefits and expenses by employee	As of December ‎ 31, 2019			As of December ‎ 31, 2018			As of December ‎ 31, 2017
	ThUS$			ThUS$			ThUS$
Opening balance		(28,233	)		(27,445	)		(22,532	)
Current cost of service		(2,880	)		(1,529	)		(934	)
Interest cost		(1,661	)		(1,658	)		(1,488	)
Actuarial gain/loss		(2,514	)		(1,617	)		(1,144	)
Exchange rate difference		2,475			2,710			(2,284	)
Benefits paid during the year		4,999			1,306			937
Total		(27,814	)		(28,233	)		(27,445	)

Disclosure of detailed information about employee Actuarial assumption rate [Text Block]

The liability recorded for staff severance indemnity is valued at the actuarial value method, using the following actuarial assumptions:

Actuarial assumptions	As of December ‎ 31, 2019			As of December ‎ 31, 2018			As of December ‎ 31, 2017			Annual/Years
Mortality rate		RV - 2014			RV - 2014			RV - 2014
Actual annual interest rate		3.68	%		4.64	%		5.114	%
Voluntary retirement rate:
Men		6.49	%		6.49	%		6.49	%		Annual
Women		6.49	%		6.49	%		6.49	%		Annual
Salary increase		3.00	%		3.00	%		3.00	%		Annual
Retirement age:
Men		65			65			65			Years
Women		60			60			60			Years

Disclosure Of Sensitivity Analysis For Actuarial Assumptions Explanatory [Text Block]

As of December 31, 2019 and 2018, the Company has conducted a sensitivity analysis of the main assumptions of the actuarial calculation, determining the following:

Sensitivity analysis as of December 31, 2019	Effect + 100 basis ‎ points			Effect + 100 basis ‎ points
	ThUS$			ThUS$
Discount rate		(1,796	)		2,021
Employee turnover rate		(236	)		263

Sensitivity analysis as of December 31, 2018	Effect + 100 basis ‎ points			Effect + 100 basis ‎ points
	ThUS$			ThUS$
Discount rate		(1,807	)		2,033
Employee turnover rate		(237	)		265