EMPLOYEE BENEFITS (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of defined benefit plans [abstract]

Schedule of composition of employee benefits

	As of		As of
	December 31,		December 31,
	2018		2017
	ThUS$		ThUS$
Retirements payments		56,126		55,119
Resignation payments		8,802		10,124
Other obligations		17,437		35,844
Total liability for employee benefits		82,365		101,087

Schedule of movement of employee benefits

The movement in retirements and resignation payments and other obligations:

			Increase (decrease)						Actuarial
	Opening		current service			Benefits			(gains)			Currency			Closing
	balance		provision			paid			losses			translation			balance
	ThUS$		ThUS$			ThUS$			ThUS$			ThUS$			ThUS$
From January 1 to December 31, 2016		65,271		17,487			(4,536	)		3,105			995			82,322
From January 1 to December 31, 2017		82,322		21,635			(5,399	)		(2,763	)		5,292			101,087
From January 1 to December 31, 2018		101,087		(7,384	)		(6,018	)		5,820			(11,140	)		82,365

Schedule of principal assumptions

The principal assumptions used in the calculation to the provision in Chile are presented below:

	As of
	December 31,
Assumptions	2018	2017
Discount rate	4.27%	4.55%
Expected rate of salary increase	4.50%	4.50%
Rate of turnover	6.60%	6.98%
Mortality rate	RV-2014	RV-2014
Inflation rate	2.70%	2.72%
Retirement age of women	60	60
Retirement age of men	65	65

Schedule of sensitivity analysis actuarial assumptions

The sensitivity analysis for these variables is presented below:

	Effect on the liability
	As of			As of
	December 31,			December 31,
	2018			2017
		ThUS$			ThUS$
Discount rate
Change in the accrued liability an closing for increase in 100 p.b.		(6,538	)		(5,795	)
Change in the accrued liability an closing for decrease of 100 p.b.		4,918			6,617
Rate of wage growth
Change in the accrued liability an closing for increase in 100 p.b.		4,750			6,412
Change in the accrued liability an closing for decrease of 100 p.b.		(6,547	)		(5,750	)

Schedule of liability for short-term

The liability for short-term:

	As of		As of
	December 31,		December 31,
	2018		2017
	ThUS$		ThUS$
Profit-sharing and bonuses (*)		81,222		99,862

(*) Accounts payables to employees (Note 20 letter b)

Schedule of employment expenses

Employment expenses are detailed below:

	For the year ended
	December 31,
	2018		2017		2016
	ThUS$		ThUS$		ThUS$
Salaries and wages		1,481,357		1,604,552		1,549,402
Short-term employee benefits		132,394		145,245		132,436
Termination benefits		54,007		85,070		79,062
Other personnel expenses		152,211		188,767		190,233
Total		1,819,969		2,023,634		1,951,133