v3.3.1.900
Debt and Capital Lease Obligations (Unitymedia KabelBW Revolving Credit Facilities) (Narrative) (Details)
€ in Millions, $ in Millions
3 Months Ended
Sep. 30, 2014
EUR (€)
Sep. 30, 2014
USD ($)
Dec. 31, 2014
EUR (€)
Dec. 31, 2014
USD ($)
Sep. 30, 2014
USD ($)
Unitymedia KabelBW Revolving Credit Facility [Member]          
Debt Instrument [Line Items]          
Outstanding principal amount     € 280.0 $ 338.8  
Net leverage ratio threshold for restrictive covenants to apply 0.333 0.333      
Old Unitymedia KabelBW Revolving Credit Facilities [Member]          
Debt Instrument [Line Items]          
Extinguishment of debt € 337.5 $ 408.4      
UM Super Senior Secured Facility [Member]          
Debt Instrument [Line Items]          
Principal amount of debt € 80.0       $ 96.8
Fee on unused portion of credit facility 0.90% 0.90%      
UM Super Senior Secured Facility [Member] | EURIBOR [Member]          
Debt Instrument [Line Items]          
Basis spread on variable rate 2.25% 2.25%      
UM Senior Secured Facility [Member]          
Debt Instrument [Line Items]          
Principal amount of debt € 420.0       $ 508.2
Fee on unused portion of credit facility 1.10% 1.10%      
UM Senior Secured Facility [Member] | EURIBOR [Member]          
Debt Instrument [Line Items]          
Basis spread on variable rate 2.75% 2.75%