Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Narrative) (Details)

v2.4.0.6
Stockholders' Equity (Narrative) (Details)
Mar. 31, 2013
Dec. 31, 2012
Interactive Group [Member] | Series A [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 36,422,000  
Interactive Group [Member] | Common Class A [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 36,422,000 33,839,000
Common Stock, Shares Authorized 4,000,000,000 4,000,000,000
Interactive Group [Member] | Common Class B [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 432,000 432,000
Common Stock, Shares Authorized 150,000,000 150,000,000
Interactive Group [Member] | ERROR in label resolution.
   
Common Stock, Shares Authorized 4,000,000,000  
Ventures Group [Member] | Series A [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,095,000  
Ventures Group [Member] | Common Class A [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,095,000 1,155,000
Common Stock, Shares Authorized 200,000,000 200,000,000
Ventures Group [Member] | Common Class B [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 22,000 22,000
Common Stock, Shares Authorized 7,500,000 200,000,000
Ventures Group [Member] | ERROR in label resolution.
   
Common Stock, Shares Authorized 200,000,000