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Accrued expenses payable - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2025
Accrued Expenses [Abstract]
Accrual expense settlement period	12 months

X

- Definition

Accrual expense settlement period.

+ References

No definition available.

+ Details

Name:	cpa_AccrualExpenseSettlementPeriod
Namespace Prefix:	cpa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Accrued expenses.

+ References

No definition available.

+ Details

Name:	cpa_AccruedExpensesAbstract
Namespace Prefix:	cpa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration