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Material accounting policies (Tables)
 12 Months Ended
Dec. 31, 2023
Material Accounting Policies [Abstract]  
Summary of Estimated Useful Lives For Current Period and Comparative Period

The estimated useful lives for the current period and comparative period are as follows:

 

 

 

Useful life
(years)

 

Annual
depreciation
rate

Machinery and equipment

 

10

 

10%

Office furniture and equipment

 

10

 

10%

Computer equipment

 

3.3  – 4

 

25% - 30%

Transportation equipment

 

4 – 5

 

20% - 25%

Communication equipment

 

3.3 – 4 – 10

 

10% - 25% - 30%

Improvements on leased assets

 

10

 

10%

 
Summary of Amortization Periods For Current Period and Comparative Period

Amortization periods for the current and comparative period are as follows:

 

 

Period
(years)

 

Annual
amortization
rate

Improvements to concession assets

 

12.5 – 20

 

5% - 8%

Airport concessions

 

18 – 25 – 49

 

2% - 4% - 5.5%

Rights to use airport facilities

 

10 – 49

 

2% - 10%

Other acquired rights

 

44 – 48

 

2%