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Correction and Changes in Disclosures - Summary of Reconciliation of Changes in Presentation in Prior Years (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current liabilities      
Taxes and interest payable $ 70,077 $ 68,483 $ 43,176
Accrued expenses payable 60,321 44,362 82,948
Income tax payable 3,700 1,401 24,066
Non-current liabilities      
Other long-term liabilities 130,621 108,448 54,339
Operating revenue      
Passenger revenue 2,462,419 2,155,167 2,185,465
Cargo and mail revenue 55,290 53,989 56,738
Other operating revenue 9,847 12,696 11,507
Total operating revenue 2,527,556 2,221,852 2,253,710
Operating expenses      
Fuel 572,746 528,996 603,760
Wages, salaries, benefits and other employees' expenses 415,147 370,190 373,631
Passenger servicing 99,447 86,329 84,327
Airport facilities and handling charges 171,040 159,771 148,078
Sales and distribution 200,413 193,984 188,961
Maintenance, material and repairs 132,148 121,781 111,178
Depreciation and amortization 167,324 167,894 150,548
Flight operations 101,647 88,188 86,461
Aircraft rentals 134,539 138,885 142,177
Cargo and courier expenses 7,375 6,099 6,471
Other Operating and administrative expenses 96,087 92,215 105,484
Total operating expenses 2,097,913 1,954,332 2,001,076
Operating profit 429,643 267,520 252,634
Non-operating income (expense)      
Finance cost (35,223) (37,024) (33,155)
Finance income 17,939 13,000 25,947
(Loss) Gain on foreign currency fluctuations 6,145 13,043 (440,097)
Net change in fair value of derivatives 2,801 111,642 (11,572)
Other non-operatingexpense (2,337) (3,982) (1,632)
Total non - operating income (expense) (10,675) 96,679 (460,509)
Profit (loss) before taxes 418,968 364,199 (207,875)
Income tax expense (49,310) (38,271) (32,759)
Net profit (loss) $ 369,658 325,928 (240,634)
As previously reported [member]      
Current liabilities      
Taxes and interest payable   47,389  
Accrued expenses payable   80,116  
Income tax payable   22,495  
Non-current liabilities      
Other long-term liabilities   72,694  
Operating revenue      
Passenger revenue   2,133,186 2,166,727
Cargo and mail revenue   88,663 83,335
Total operating revenue   2,221,849 2,250,062
Operating expenses      
Aircraft fuel   527,918 602,777
Salaries and benefits   293,044 289,512
Passenger servicing   259,524 258,302
Commissions   83,981 88,557
Reservations and sales   99,918 88,051
Maintenance, material and repairs   122,873 111,181
Depreciation, amortization and impairment   167,894 150,548
Flight operations   127,777 130,930
Aircraft rentals   120,841 122,217
Landing fees and other rentals   55,498 56,703
Other   94,584 100,856
Total operating expenses   1,953,852 1,999,634
Operating profit   267,997 250,428
Non-operating income (expense)      
Finance cost   (37,024) (33,155)
Finance income   13,000 25,947
Exchange rate difference, net   13,043 (440,097)
Mark to market derivative income (expense)   111,642 (11,572)
Other income   2,888 7,025
Other expense   (7,347) (6,451)
Total non - operating income (expense)   96,202 (458,303)
Profit (loss) before taxes   364,199 (207,875)
Income tax expense   (38,271) (32,759)
Net profit (loss)   325,928 $ (240,634)
Reclasification [member]      
Current liabilities      
Taxes and interest payable   21,094  
Accrued expenses payable   (35,754)  
Income tax payable   (21,094)  
Non-current liabilities      
Other long-term liabilities   $ 35,754