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Related Party Transactions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Related Party Transaction [Line Items]        
Royalty payable, as a percentage of revenue 1.00%      
Royalty payable, quarterly amount     $ 20 $ 50
Sponsorship royalties payable, as a percentage of revenue 25.00%      
Affiliated Entity | License and royalty fees        
Related Party Transaction [Line Items]        
Expenses from related party $ 80 $ 90 150  
Parent Company | Allocation of corporate expenses        
Related Party Transaction [Line Items]        
Expenses from related party 1,200 130 130  
Subsidiary of Common Parent        
Related Party Transaction [Line Items]        
Related party (payable) receivable (800) 9,000    
Subsidiary of Common Parent | Allocation of corporate expenses        
Related Party Transaction [Line Items]        
Transaction amounts from related party $ (200) $ 300 $ 300