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Intangible assets, airport concessions and goodwill - Net: - CGU with a significant amount of goodwill (Details) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Colombia (Airplan) |  |
Disclosure by geographical areas: |  |
Discount rate for the value in use method | 9.66% | 10.46%
Annual average of revenue, operating costs and expense growth rate | 5.25% | 3.10%
Output passenger growth rate | 6.70% | 4.50%
Level of the fair value hierarchy of value recoverable from the CGU | 3 | 3
Puerto Rico (Aerostar) |  |
Disclosure by geographical areas: |  |
Discount rate for the value in use method | 9.60% | 10.93%
Annual average of revenue, operating costs and expense growth rate | 4.45% | 4.14%
Output passenger growth rate | 2.50% | 2.50%
Level of the fair value hierarchy of value recoverable from the CGU | 3 | 3

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