Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Narrative) (Details)

v3.8.0.1
Basis of Presentation (Narrative) (Details)
$ in Millions
3 Months Ended
Mar. 09, 2018
Mar. 31, 2018
USD ($)
Liberty Media | Affiliated Entity    
Class of Stock [Line Items]    
Reimbursable expenses   $ 1.7
Liberty Ventures | Class A Common Stock    
Class of Stock [Line Items]    
Shares redemption ratio 1  
Liberty Ventures | Class B Common Stock    
Class of Stock [Line Items]    
Shares redemption ratio 1