Acquisitions and Dispositions - Dispositions (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Apr. 12, 2016
USD ($)
Sep. 30, 2016
USD ($)
item
Apr. 12, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
item
Sep. 30, 2015
USD ($)
Dispositions            
Cash received from disposal of businesses and online properties, net of cash disposed         $ 36,100 $ 4,766
Gain on disposal of businesses and online properties         39,149 3,105
Revenue   $ 28,059   $ 28,505 79,463 91,483
Pre-tax income (loss)   $ (8,381)   (13,792) $ 4,257 (34,917)
Cash received from early repayment of promissory note           5,100
Pluck Social Media | Sold            
Dispositions            
Cash received from disposal of businesses and online properties, net of cash disposed           3,800
Gain on disposal of businesses and online properties           2,100
Certain non-core online properties | Sold            
Dispositions            
Number of properties disposed | item   1     1  
Total consideration received   $ 1,000   900 $ 1,000 900
Cracked | Sold            
Dispositions            
Total consideration received $ 39,000   $ 39,000      
Net assets sold 600   600      
Transaction costs incurred during sale 300          
Escrow Deposit $ 3,900   3,900      
Term of escrow from closing date 15 months          
Revenue     1,800 2,800   8,200
Pre-tax income (loss)     $ (1,900) $ 900   $ 2,500
Other income, net | Certain non-core online properties | Sold            
Dispositions            
Gain on sale of certain non-core online properties         $ 1,000  
Other income, net | Cracked | Sold            
Dispositions            
Gain on disposal of businesses and online properties $ 38,100