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Business Combinations (Details) (USD $)
0 Months Ended 3 Months Ended
Jun. 30, 2013
Jan. 31, 2013
Subsidiaries, Spigit
Jun. 30, 2013
Subsidiaries, Spigit
Dec. 31, 2012
Equity Method Investee, Spigit [Member]
Jun. 30, 2013
Series F Preferred Stock [Member]
Subsidiaries, Spigit
Business Acquisition [Line Items]          
Carrying value of equity method investment       $ 0  
Payments to acquire additional voting preferred stock   5,000,000      
Expected future payments to acquire additional interest in subsidiaries     5,000,000    
Preferred stock investment, value         1,800,000
Cumulative percentage ownership after acquisition of voting interests     69.00%    
Goodwill 5,101,000        
Intangible assets $ 10,976,000