Annual report pursuant to Section 13 and 15(d)

Basis of Presentation (Details)

v3.19.3.a.u2
Basis of Presentation (Details)
$ in Millions
1 Months Ended 12 Months Ended
Mar. 09, 2018
Dec. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Affiliated Entity | Liberty Media        
Class of Stock [Line Items]        
Reimbursable expenses     $ 9.7 $ 8.3
Gregory B. Maffei        
Class of Stock [Line Items]        
Employment term   5 years    
Liberty Ventures | Series A Common Stock        
Class of Stock [Line Items]        
Shares redemption ratio 1      
Liberty Ventures | Series B Common Stock        
Class of Stock [Line Items]        
Shares redemption ratio 1      
Annual Based Salary | Gregory B. Maffei        
Class of Stock [Line Items]        
Related party costs   $ 3.0    
One-Time Cash Commitment Bonus | Gregory B. Maffei        
Class of Stock [Line Items]        
Related party costs   5.0    
Aggregate Annual Target cash Performance Bonus | Gregory B. Maffei        
Class of Stock [Line Items]        
Related party costs   17.0    
Aggregate Annual Equity Awards | Gregory B. Maffei        
Class of Stock [Line Items]        
Related party costs   17.5    
Upfront Award | Gregory B. Maffei        
Class of Stock [Line Items]        
Related party costs   $ 90.0    
Gregory B. Maffei | Compensation | Affiliated Entity        
Class of Stock [Line Items]        
Expense allocation percent   14.00%