Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Narrative) (Details)

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Stockholders' Equity (Narrative) (Details)
 0 Months Ended
Apr. 11, 2014
Feb. 27, 2014
Jun. 30, 2014
Dec. 31, 2013
Ventures Group
        
Class of Stock [Line Items]        
Stock split, conversion ratio 2      
Series C | Interactive Group
        
Class of Stock [Line Items]        
Outstanding options     0  
Common stock, shares authorized     4,000,000,000  
Series C | Ventures Group
        
Class of Stock [Line Items]        
Outstanding options     0  
Common stock, shares authorized     200,000,000  
Common Class A | Interactive Group
        
Class of Stock [Line Items]        
Outstanding options     30,300,000  
Common stock, shares authorized     4,000,000,000 4,000,000,000
Common Class A | Ventures Group
        
Class of Stock [Line Items]        
Common stock, shares authorized     200,000,000 200,000,000
Common Class A | Liberty Ventures
        
Class of Stock [Line Items]        
Outstanding options     1,834,000 1,932,000
Stock split, conversion ratio   2    
Stock split, dividends 1      
Common Class B | Interactive Group
        
Class of Stock [Line Items]        
Outstanding options     432,000  
Common stock, shares authorized     150,000,000 150,000,000
Common Class B | Ventures Group
        
Class of Stock [Line Items]        
Outstanding options     44,000  
Common stock, shares authorized     7,500,000 7,500,000
Common Class B | Liberty Ventures
        
Class of Stock [Line Items]        
Stock split, conversion ratio   2    
Stock split, dividends 1