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Acquisition - Narrative (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 03, 2020
USD ($)
$ / shares
Jan. 13, 2020
USD ($)
Dec. 31, 2020
USD ($)
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Business Acquisition [Line Items]            
Goodwill impairments         $ 2,100  
Amortization expense           $ 1,276
Interest expense     $ 25      
Jack's Flight Club | Promissory Notes            
Business Acquisition [Line Items]            
Outstanding debt amount $ 10,000          
Amount of debt forgiven 1,500     $ 1,500    
Repayments of debt 6,800          
Debt amount remaining $ 1,700          
Interest rate during period 12.00%          
Interest expense           142
Threshold amount $ 4,300          
EBITDA multiplier | $ / shares 3.5          
Jack's Flight Club | Promissory Notes | 2020            
Business Acquisition [Line Items]            
Repayments of debt           $ 448
Percent of net profit requirement     20.00%     20.00%
Jack's Flight Club | Promissory Notes | 2021            
Business Acquisition [Line Items]            
Percent of net profit requirement 20.00%          
Percent of EBITDA purchase price requirement 40.00%          
Jack's Flight Club            
Business Acquisition [Line Items]            
Percentage of ownership before transaction (up to)   100.00%        
Stock repurchased during period, value   $ 12,000        
Cash paid   1,000        
Promissory note including interest   $ 11,000        
Stated interest rate   1.60%        
Goodwill impairments           $ 2,110
Intangible assets   $ 6,600        
Jack's Flight Club | Trade name            
Business Acquisition [Line Items]            
Impaired indefinite lived intangible assets         $ 810 $ 810
Intangible assets   $ 2,460        
Jack's Flight Club | Stock Purchase Agreement            
Business Acquisition [Line Items]            
Percentage of ownership after transaction   60.00%       40.00%