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Property, Plant and Equipment (Details) - PEN (S/) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Property, Plant and Equipment (Details) [Line Items] |  |
Impairment charge on total book value |  | S/ 42,859,000
Group maintains accounts payable | S/ 7,615,000 | S/ 4,830,000
Mining assets [member] |  |
Property, Plant and Equipment (Details) [Line Items] |  |
Net acquisition costs related to coal concessions | S/ 15,488,000 |

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- Definition Impairment charge on total book value. + References No definition available. + Details
Name: | cpac_ImpairmentChargeOnTotalBookValue
Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Net acquisition costs + References No definition available. + Details
Name: | cpac_NetAcquisitionCosts
Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | cpac_PropertyPlantandEquipmentDetailsLineItems
Namespace Prefix: | cpac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Work in progress + References No definition available. + Details
Name: | cpac_WorkingInProgress
Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_MiningAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |