Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.4.0.3
Basis of Presentation (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Dec. 10, 2014
$ / shares
Nov. 04, 2014
Jan. 09, 2015
USD ($)
shares
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Broadband Spin-Off Distribution Ratio   0.25      
Subscription Rights Discount to Market Percentage 20.00%        
Subscription Rights Period of Time for Calculation of Subscription Price 20 days        
Cash received from rights offering     $ 697,300   $ 697,309
Liberty          
Related Party Transaction, Amounts of Transaction       $ 1,000 $ 891
Class C common stock          
Subscription rights distribution ratio 0.20        
Share Price | $ / shares $ 40.36        
Stock Issued During Period, Shares, New Issues | shares     17,277,224