Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.2.0.727
Basis of Presentation (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
May. 26, 2015
USD ($)
$ / shares
Dec. 10, 2014
$ / shares
Nov. 04, 2014
shares
Jan. 09, 2015
USD ($)
shares
Jun. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Broadband Spin-Off Distribution Ratio     0.25      
Subscription rights distribution ratio   0.20        
Stock Issued During Period, Shares, New Issues | shares     85,761,332      
Share Price | $ / shares $ 56.23          
Subscription Rights Discount to Market Percentage   20.00%        
Subscription Rights Period of Time for Calculation of Subscription Price   20 days        
Related Party Transaction, Amounts of Transaction         $ 265 $ 1,100
Cash received from rights offering $ 4,400,000     $ 697,000   $ 697,309
Class C common stock            
Stock Issued During Period, Shares, New Issues | shares       17,277,224    
Share Price | $ / shares   $ 40.36