Other Assets (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 9 Months Ended
Jun. 30, 2011
Sep. 30, 2012
Dec. 31, 2011
Restricted Cash and Cash Equivalents Items [Line Items]      
Payments for gTLD applications $ 0 $ (18,202)  
Restricted cash included in other long term assets for gTLD program   855  
Other long term assets      
Payments for gTLD applications   18,202 0
Other   3,151 2,524
Other assets   $ 21,353 $ 2,524
Minimum [Member]
     
Restricted Cash and Cash Equivalents Items [Line Items]      
Restricted cash, restriction period   5 years