Annual report pursuant to Section 13 and 15(d)

Debt (Details)

v3.3.1.900
Debt (Details)
$ in Thousands, shares in Millions
1 Months Ended 4 Months Ended 12 Months Ended
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
Oct. 31, 2014
USD ($)
Oct. 30, 2014
USD ($)
item
Oct. 31, 2015
USD ($)
Apr. 30, 2015
USD ($)
Nov. 30, 2014
USD ($)
May. 31, 2013
shares
Jul. 31, 2015
Dec. 31, 2015
USD ($)
Mar. 27, 2015
USD ($)
Dec. 31, 2013
Dec. 25, 2013
USD ($)
Debt disclosures                          
Debt outstanding $ 399,703 $ 371,539               $ 399,703      
Repayments of debt                   40,000      
Other Assets                          
Debt disclosures                          
Prior Period Reclassification Adjustment   461                      
Margin Loan Agreements                          
Debt disclosures                          
Debt outstanding $ 400,000 372,000               400,000      
Remaining borrowing capacity   28,000                      
Proceeds From Issuance Of Secured Debt         $ 28,000   $ 52,000            
Margin Loan Agreements | Charter                          
Debt disclosures                          
Number of common shares pledged as collateral | shares 7.0                        
Value of pledged collateral $ 1,300,000                 $ 1,300,000      
Margin Loan Agreements | Three-month LIBOR                          
Debt disclosures                          
Interest rate basis                   three-month LIBOR      
Basis spread on variable rate                   1.55%      
Revolving Credit Facility                          
Debt disclosures                          
Maximum borrowing capacity                     $ 234,000    
Proceeds from Issuance of Debt           $ 40,000              
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                 0.12%        
Revolving Credit Facility | Three-month LIBOR                          
Debt disclosures                          
Interest rate basis                 three-month LIBOR        
Basis spread on variable rate                 0.64%        
Standby Letters of Credit                          
Debt disclosures                          
Line of Credit, Current $ 0                 $ 0      
BroadbandSPV | Margin Loan Agreements                          
Debt disclosures                          
Number of debt agreement | item       2                  
Maximum borrowing capacity       $ 400,000                  
Remaining borrowing capacity     $ 80,000                    
Proceeds From Issuance Of Secured Debt     $ 320,000                    
Liberty                          
Debt disclosures                          
Distribution to parent       $ 300,000                  
Liberty | Charter                          
Debt disclosures                          
Number of common shares pledged as collateral | shares               20.3          
TruePosition | Line of credit                          
Debt disclosures                          
Maximum borrowing capacity                         $ 4,000
Interest rate (as a percent)                       0.40%  
TruePosition | Standby Letters of Credit                          
Debt disclosures                          
Long-term Line of Credit   $ 634                      
Interest rate (as a percent)                         1.75%