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Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2020
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)202020192018
Scheduled service$435,668 $897,631 $898,653 
Ancillary air-related charges453,545 770,206 621,939 
Co-brand redemptions12,974 15,118 13,109 
Total passenger revenue$902,187 $1,682,955 $1,533,701 
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)20202019
Balance at January 1$15,613 $10,708 
Points awarded19,202 20,023 
Points redeemed(12,974)(15,118)
Balance at December 31$21,841 $15,613