Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement (Additional Information) (Details)

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Fair Value Measurement (Additional Information) (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 22, 2016
Jul. 12, 2016
Feb. 08, 2016
Sep. 16, 2013
May 10, 2012
Feb. 29, 2016
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Oct. 10, 2016
Jul. 08, 2016
Dec. 03, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Number of warrants issued (in shares)         1,068                
Sale price of warrants (in dollars per share)         $ 8,800                
Warrant conversion ratio (in shares)         1                
Warrants, exercise price per share (in dollars per shares)       $ 2,000 $ 12,800                
Exercise period for warrants (in years)         3 years                
Mark-to-market gain recorded on warrants                 $ 0 $ 0      
Number of shares issued (in shares)                         437,500
Warrant                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Conversion of stock, shares converted (in shares)       341                  
Common stock, shares outstanding (in shares)             14,545   14,545 14,545      
Level 3                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Fair value of outstanding warrants         $ 5,281,000,000   $ 10,000,000   $ 10,000,000 $ 10,000,000      
Warrant                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Other investment     $ 1,023,000,000       1,091,000   1,091,000        
Fair value loss in financial assets               $ 503,000,000          
Perk Agreement                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Consideration transferred             1,300,000,000   1,300,000,000        
Recorded loss               $ (2,195,000,000)          
Discontinued Operations, Disposed of by Sale | Viggle                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Consideration received (in shares)     1,370,000     1,370,000              
Consideration transferred     $ 5,110,000                    
Common Stock                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Number of shares issued (in shares)               1,013,068     136,304    
Series C Preferred Stock                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Convertible preferred stock fair value $ 28,500,000,000                        
Charged to additional paid in capital               $ 1,675,000,000          
Other Expense | Perk Agreement                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Recorded loss                 (2,195,000)        
Rant, Inc.                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Fair value of debt   $ 3,500,000                      
Rant, Inc. | Series E Preferred Stock                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Series E preferred stock issued (in shares)   4,435,000                      
Issuance of preferred shares   $ 7,600,000,000                      
Secured Debt | Rant, Inc.                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Debt issue amount   $ 3,000,000                      
Change in fair value             100,000,000            
Conversion to stock price (in dollars per share)   $ 5.20                      
Secured Convertible Note | Secured Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Debt issue amount             3,000,000   3,000,000        
Secured Convertible Note | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Debt issue amount                       $ 3,000,000  
Conversion to stock price (in dollars per share)                       $ 5.20  
Debentures | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Debt issue amount   $ 4,444,000         4,444,000   4,444,000        
Conversion to stock price (in dollars per share)   $ 6.2660                      
Conversion Feature | Secured Convertible Note | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Fair value of debt             400,000   400,000     $ 500,000  
Conversion Feature | Debentures | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Fair value of debt   $ 1,856,000,000         1,256,000,000   1,256,000,000        
Change in fair value             600,000            
Unamortized discount             1,005,000   1,005,000        
Debentures Subject to Mandatory Redemption | Debentures | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Unamortized discount               1,856,000,000          
Warrants and Rights Subject to Mandatory Redemption | Debentures | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Fair value of debt   1,500,000,000                      
Unamortized discount               $ 1,500,000,000          
Affiliated Entity | Line of Credit Grid Note                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Long-term line of credit 900,000                        
Note Exchange Agreement | Affiliated Entity                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Debt converted value $ 30,175,000                        
Note Exchange Agreement | Affiliated Entity | Series C Preferred Stock                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Shares issued in conversion (in shares) 30,175                        
Conversion to stock price (in dollars per share) $ 1,000                        
Warrant | Debentures | Convertible Debt                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                          
Fair value of warrants   $ 1,500,000         410,000   410,000        
Unamortized discount             $ 812,500   $ 812,500        
Conversion to stock price (in dollars per share)   $ 6.5280