Employee benefits (Tables)

12 Months Ended

Dec. 31, 2018

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	12/31/2018		12/31/2017
	ThUS$		ThUS$
Current
Profit sharing and bonuses		20,085		22,421
Total		20,085		22,421

Non-current
Profit sharing and bonuses		8,831		6,487
Severance indemnity payments		28,233		27,445
Total		37,064		33,932

The other long-term benefits relate to staff severance indemnities and are recorded at their actuarial value, a

nd an executive compensation plan (see Note 18.6).

Staff severance indemnities at actuarial value	12/31/2018		12/31/2017
	ThUS$		ThUS$
Staff severance indemnities, Chile		27,562		25,893
Executive severance plan		8,831		6,487
Severance for foreigners		671		1,552
Total other non-current liabilities		37,064		33,932

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

Reconciliation	12/31/2018			12/31/2017			12/31/2016
	ThUS$			ThUS$			ThUS$
Changes in the benefit obligation
Benefit obligation at the beginning of the year		8,755			8,185			7,949
Service cost		-			2			2
Interest cost		319			359			387
Actuarial loss		63			556			200
Benefits paid		(480	)		(347	)		(353	)
Benefit obligation at the end of the year		8,657			8,755			8,185

	12/31/2018			12/31/2017			12/31/2016
	ThUS$			ThUS$			ThUS$
Changes in the plan assets:
Fair value of plan assets at the beginning of the year		8,751			7,404			7,464
Actual return (loss) in plan assets		133			1,694			293
Benefits paid		(480	)		(347	)		(353	)
Fair value of plan assets at the end of the year		8,404			8,751			7,404
Financing status		(253	)		(4	)		(781	)
Items not yet recognized as net periodic pension cost components:
Net actuarial loss at the beginning of the year		(2,614	)		(3,432	)		(3,165	)
Amortization during the year		160			219			184
Net estimated gain or loss occurred during the year		(568	)		599			(451	)
Adjustment to recognize the minimum pension obligation		(3,022	)		(2,614	)		(3,432	)

The net periodic pension expense was composed of the following components for the years ended December 31, 2018, 2017 and 2016:

Reconciliation	12/31/2018			12/31/2017		12/31/2016
	ThUS$			ThUS$		ThUS$
Service cost or benefits received during the year		-			2		2
Interest cost in benefit obligation		319			359		387
Actual return in plan assets		133			1,694		293
Amortization of prior year losses		160			219		184
Net gain during the year		(568	)		599		610
Net periodic pension expense		(159	)		41		29

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

As of December 31, 2018 and 2017, severance indemnities calculated at the actuarial value are as follows:

	12/31/2018 ThUS$			12/31/2017 ThUS$			12/31/2016 ThUS$
Opening balance		(27,445	)		(22,532	)		(21,995	)
Current cost of service		(1,529	)		(934	)		(1,333	)
Interest cost		(1,658	)		(1,488	)		(1,407	)
Actuarial gain/loss		(1,617	)		(1,144	)		(2,253	)
Exchange rate difference		2,710			(2,284	)		(1,215	)
Benefits paid during the year		1,306			937			5,671
Balance		(28,233	)		(27,445	)		(22,532	)

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:

	12/31/2018			12/31/2017			12/31/2016

Mortality rate		RV - 2014			RV - 2014			RV - 2009
Actual annual interest rate		4.642	%		5.114	%		4.522	%
Voluntary retirement rate:
Men		6.49	%		6.49	%		7.16	%	annual
Women		6.49	%		6.49	%		7.16	%	annual
Salary increase		3.00	%		3.00	%		3.60	%	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, 2018 and December 31, 2017, the Company has conducted a sensitivity analysis of the main assumptions of the actuarial calculation, determining the following:

Sensitivity analysis 12/31/2018	Effect + 100 basis points ThUS$			Effect - 100 basis points ThUS$
Discount rate		(1,807	)		2,033
Employee turnover rate		(237	)		265

Sensitivity analysis 12/31/2017	Effect + 100 basis points ThUS$			Effect - 100 basis points ThUS$
Discount rate		(1,991	)		2,436
Employee turnover rate		(252	)		281

Sensitivity relates to an increase/decrease of

100

basis points.