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SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Tables)
12 Months Ended
Dec. 31, 2017
Analysis of income and expense [abstract]  
Schedule of selling, general and administrative expense
 
Year ended December 31,
 
2017
 
2016
 
2015
 
 
 
 
 
 
Services and fees (1)
86,990

 
65,965

 
69,434

Labor cost
229,529

 
193,118

 
214,352

Depreciation of property, plant and equipment
12,345

 
13,589

 
13,761

Amortization of intangible assets
78,264

 
38,427

 
36,283

Maintenance and expenses
5,038

 
3,092

 
4,957

Taxes
98,786

 
90,166

 
130,061

Office expenses
35,922

 
36,223

 
40,487

Freight and transportation
259,898

 
234,801

 
246,762

(Decrease) Increase of allowance for doubtful accounts
685

 
288

 
(824
)
Others
16,790

 
12,273

 
15,019

 
 
 
 
 
 
Selling, general and administrative expenses
824,247

 
687,942

 
770,292