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Commitments and contingencies - Open tax procedures - lV (Details) - Year 2009 [Member] - SUNAT.
Jan. 31, 2021
PEN (S/)
Jan. 31, 2021
USD ($)
Dec. 14, 2020
PEN (S/)
Dec. 14, 2020
USD ($)
Disclosure of Commitments and contingencies [Line Items]        
Tax debt     S/ 202,614,000 $ 54,569,000
Collection of debt forced amount S/ 19,171,000 $ 5,174,000