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Accounts and Transactions with Related Parties - Summary of Related Party Transactions (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Petroleos delta, S. A. [member] | Purchase of jet fuel [member]      
Disclosure of transactions between related parties [line items]      
Related party $ 290,172 $ 229,899 $ 248,944
ASSA compania de seguros, S. A. [member] | Insurance [member]      
Disclosure of transactions between related parties [line items]      
Related party 8,527 7,128 9,170
Desarrollo inmobiliario del este, S. A. [member] | Property leasing [member]      
Disclosure of transactions between related parties [line items]      
Related party 3,625 3,795 2,982
Profuturo administradora de fondos de pension y cesantia [member] | Payments [member]      
Disclosure of transactions between related parties [line items]      
Related party 2,386 3,238  
Motta International [member] | Purchase [member]      
Disclosure of transactions between related parties [line items]      
Related party 1,632 1,646 1,290
Cable Onda, S. A. [member] | Communications [member]      
Disclosure of transactions between related parties [line items]      
Related party 1,448 1,625  
GBM International, Inc. [member] | Technological support [member]      
Disclosure of transactions between related parties [line items]      
Related party 273 272 533
Galindo, arias and lopez [member] | Legal services [member]      
Disclosure of transactions between related parties [line items]      
Related party 373 341 271
Global Brands Panama, S. A. [member] | Purchase [member]      
Disclosure of transactions between related parties [line items]      
Related party 79 67 47
Panama air cargo terminal [member] | Handling [member]      
Disclosure of transactions between related parties [line items]      
Related party 4,869    
Lubricantes Delta, S. A. [member] | Fuel accessories [member]      
Disclosure of transactions between related parties [line items]      
Related party   63  
Editora del caribe, S. A. [member] | Advertising [member]      
Disclosure of transactions between related parties [line items]      
Related party 4 (162) 22
Banco general, S. A. [member] | Interest income [member]      
Disclosure of transactions between related parties [line items]      
Related party $ (2,986) $ (1,284) $ (1,301)