Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

v3.3.1.900
Stockholders' Equity (Details)
 12 Months Ended
Jan. 09, 2015
shares
Dec. 10, 2014
$ / shares
Nov. 04, 2014
shares
Oct. 29, 2014
Dec. 31, 2015
Vote
shares
Dec. 31, 2014
shares
May. 26, 2015
$ / shares
Broadband Spin-Off Distribution Ratio       0.25      
Shares issued during period     85,761,332     85,761,332  
Preferred shares issued         0 0  
Class A common stock              
Broadband Spin-Off Distribution Ratio       0.25      
Number of votes | Vote         1    
Shares reserved for future issuance upon exercise of stock options         630,000    
Class B common stock              
Number of votes | Vote         10    
Shares received in exchange         1    
Class C common stock              
Subscription rights distribution ratio   0.20          
Shares issued during period 17,277,224            
Purchase price (in dollars per share) | $ / shares   $ 40.36         $ 56.23
Discount percentage for holders to acquire shares enabled by subscription rights   20.00%          
Number of trading days of volume weighted average trading price used for calculating discount for holders to acquire shares enabled by subscription rights   20 days          
Number of votes | Vote         0    
Shares reserved for future issuance upon exercise of stock options         2,800,000