Information about Operating Segments Performance Measures and Other Information (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Segment Reporting Information [Line Items]      
Total revenue $ 450.7 $ 420.0  
Total Adjusted OIBDA 155.5 126.2  
Total capitalized production and development spend 108.7 79.5  
Total Assets 1,687.5   1,573.2
Starz Networks      
Segment Reporting Information [Line Items]      
Total revenue 334.0 324.0  
Total Adjusted OIBDA 129.7 114.0  
Total capitalized production and development spend 69.1 55.5  
Total Assets 1,505.1   1,357.4
Starz Distribution      
Segment Reporting Information [Line Items]      
Total revenue 109.7 87.3  
Total Adjusted OIBDA 26.4 12.7  
Total capitalized production and development spend 39.6 24.0  
Total Assets 228.8   174.1
Starz Animation      
Segment Reporting Information [Line Items]      
Total revenue 7.3 8.9  
Total Adjusted OIBDA (0.6) (0.6)  
Total capitalized production and development spend 0 0  
Total Assets 2.5   2.4
Other unallocated assets (primarily cash, deferred taxes and other assets, including a commercial lease for Starz’s corporate headquarters facility)      
Segment Reporting Information [Line Items]      
Total Assets 83.8   101.9
Inter-segment eliminations      
Segment Reporting Information [Line Items]      
Total revenue (0.3) (0.2)  
Total Adjusted OIBDA 0 0.1  
Total capitalized production and development spend 0 0  
Total Assets $ (132.7)   $ (62.6)