Quarterly report pursuant to Section 13 or 15(d)

REVENUE - Contract Balances (Details)

v3.21.2
REVENUE - Contract Balances (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]    
Deferred revenue $ 587,267 $ 653,078
Less: Deferred revenue - current (585,319) (651,096)
Deferred revenue, non-current 1,948 1,982
Flights - Prepaid Blocks and jet cards    
Disaggregation of Revenue [Line Items]    
Deferred revenue 538,695 609,490
Memberships - annual dues    
Disaggregation of Revenue [Line Items]    
Deferred revenue 36,771 32,016
Memberships - initiation fees    
Disaggregation of Revenue [Line Items]    
Deferred revenue 4,034 3,870
Flights - credits    
Disaggregation of Revenue [Line Items]    
Deferred revenue 6,780 7,291
Other    
Disaggregation of Revenue [Line Items]    
Deferred revenue $ 987 $ 411