XML 132 R117.htm IDEA: XBRL DOCUMENT v3.8.0.1
Finance costs (Details) - PEN (S/)
S/ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Finance Costs      
Interest on senior notes, net of capitalization, note 14 S/ 45,358 S/ 44,729 S/ 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 S/ 73,759 S/ 75,397 S/ 36,807