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Acquisition - Schedule of Goodwill (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2020
Goodwill [Roll Forward]    
Goodwill, beginning balance $ 0 $ 0
Impairment—March 31, 2020 (2,100)  
Goodwill, ending balance   10,944
Jack's Flight Club    
Goodwill [Roll Forward]    
Goodwill, beginning balance $ 0 0
Acquisition   13,054
Impairment—March 31, 2020   (2,110)
Goodwill, ending balance   $ 10,944