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Finance costs (Tables)
 12 Months Ended
Dec. 31, 2017
Finance Costs Tables  
Schedule of finance costs

This caption is made up as follows:

 

   2017     2016     2015  
   S/(000)   S/(000)   S/(000) 
                
Interest on senior notes, net of capitalization, note 14   45,358    44,729    8,108 
Finance cost on cross currency swaps   26,140    27,800    25,169 
Amortization of costs of issuance of senior notes   1,644    1,644    1,644 
Other   95    94    1,098 
                
Total interest expense   73,237    74,267    36,019 
Unwinding of discount of long-term incentive plan, note 13   522    345    788 
Unwinding of discount of other receivables   —    785    — 
                
Total finance costs   73,759    75,397    36,807