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Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
Passenger revenue is the most significant category in our reported operating revenues, as outlined below:

Year Ended December 31,
(in thousands)202120202019
Scheduled service$769,371 $435,668 $897,631 
Ancillary air-related charges788,064 453,545 770,206 
Loyalty redemptions21,001 12,974 15,118 
Total passenger revenue$1,578,436 $902,187 $1,682,955 
Contract with Customer, Asset and Liability
The following table presents the activity of the co-brand point liability as of the dates indicated:
Year Ended December 31,
(in thousands)20212020
Balance at January 1$21,841 $15,613 
Points awarded39,650 19,202 
Points redeemed(21,001)(12,974)
Balance at December 31$40,490 $21,841