v2.4.0.8
Stockholders' Equity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 9 Months Ended 3 Months Ended 3 Months Ended
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2013
Common Stock - Clsss A
Dec. 31, 2012
Common Stock - Clsss A
Sep. 30, 2013
Common Stock - Class B
Jul. 02, 2013
Common Stock - Class B
Dec. 31, 2012
Common Stock - Class B
Sep. 30, 2013
Operating Subsidiary
Common shares, first issue
Jun. 30, 2013
Operating Subsidiary
Common shares, first issue
Sep. 30, 2013
Operating Subsidiary
Common shares, second issue
Jun. 30, 2013
Operating Subsidiary
Common shares, second issue
Class of Stock [Line Items]                            
Common stock, shares authorized           200,000,000 200,000,000 50,000,000 50,000,000 50,000,000        
Preferred stock, shares authorized 100,000,000     100,000,000 100,000,000                  
Preferred stock, par value $ 0.001     $ 0.001 $ 0.001                  
Common stock, par value           $ 0.001 $ 0.001 $ 0.001   $ 0.001        
Preferred stock, shares issued 0     0 0                  
Preferred stock, shares outstanding 0     0 0                  
Common stock, shares issued           10,260,379 10,226,250 30,968,877   0        
Common stock, shares outstanding           10,260,379 10,226,250 30,968,877   0        
Number of warrants issued                       2,098,500   1,510,920
Class of Warrant or Right, Exercise Price of Warrants or Rights                     8.48   5.36  
Payment for warrants                     $ 4,328   $ 6,846  
Dividend declared per common share (in dollars per share) $ 0.02 $ 0.02 $ 0.135                      
Total dividends       $ 1,803