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Segment Information (Details) - PEN (S/) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Segment Information (Details) [Abstract] |  |
Financial investment designated at fair value | S/ 476,000 |
Fair value of derivative financial instruments | 106,601,000 |
Total financial instruments at fair value |  | S/ 692,000
Derivative financial assets |  | 42,247,000
Capital expenditures | S/ 97,288,000 | S/ 63,960,000

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- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References No definition available. + Details
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Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Fair value of derivative financial instruments. + References No definition available. + Details
Name: | cpac_FairValueOfDerivativeFinancialInstruments
Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References No definition available. + Details
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Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition financial investment designated at fair value through OCI. + References No definition available. + Details
Name: | cpac_FinancialInvestmentDesignatedAtFairValue
Namespace Prefix: | cpac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition The cash outflow for expenditure related to development projects. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
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Period Type: | duration