Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTIES (Details)

v3.21.2
RELATED PARTIES (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2016
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Related Party Transaction [Line Items]            
Related party note receivable interest rate 1.80%          
Affiliated entity, common ownership            
Related Party Transaction [Line Items]            
Expenses with related parties   $ 0 $ 8 $ 0 $ 29  
Affiliated entity, family member            
Related Party Transaction [Line Items]            
Expenses with related parties   100 100 100 100  
Senior executive            
Related Party Transaction [Line Items]            
Note receivable from related party $ 5,000         $ 100
Commercial cooperation agreement            
Related Party Transaction [Line Items]            
Expenses with related parties   1,400 600 3,200 2,800  
Payable to related parties   4,300   4,300   $ 3,000
Discounted flights to affiliates            
Related Party Transaction [Line Items]            
Revenue from related parties   400 500 1,600 1,400  
Aircraft leased | Stockholder            
Related Party Transaction [Line Items]            
Expenses with related parties   200   300    
Consultation services on employee benefits            
Related Party Transaction [Line Items]            
Expenses with related parties   $ 23 $ 23 $ 69 $ 23