Annual report pursuant to Section 13 and 15(d)

Investment in Films and Television Programs, Net (Details)

v2.4.1.9
Investment in Films and Television Programs, Net (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Investment In Films And Television Programs, Net [Abstract]      
Released film costs - theatrical, less amortization $ 1.2strza_TheatricalFilmCostsReleasedNetOfAmortization $ 2.6strza_TheatricalFilmCostsReleasedNetOfAmortization  
Film costs – television and home entertainment:      
Released, less amortization 70.5strza_TelevisionAndDvdFilmCostsReleasedNetOfAmortization 44.2strza_TelevisionAndDvdFilmCostsReleasedNetOfAmortization  
Completed, but not released 116.2strza_TelevisionAndDvdFilmCostsCompletedAndNotReleased 90.0strza_TelevisionAndDvdFilmCostsCompletedAndNotReleased  
In production 125.5strza_TelevisionAndDvdFilmCostsProduction 54.2strza_TelevisionAndDvdFilmCostsProduction  
Development and pre-production 6.1strza_TelevisionAndDvdFilmCostsDevelopmentAndPreproduction 3.6strza_TelevisionAndDvdFilmCostsDevelopmentAndPreproduction  
Investment in films and television programs, net 319.5strza_InvestmentInFilmsAndTelevisionProgramsNet 194.6strza_InvestmentInFilmsAndTelevisionProgramsNet  
Percentage of unamortized film costs expected to be amortized within three years 79.00%us-gaap_PercentageOfUnamortizedFilmCosts    
Percentage of Unamortized Film Costs within four years 85.00%strza_PercentageofUnamortizedFilmCostswithinfouryears    
Unamortized film costs for released films 71.7strza_TheatricalTelevisionAndDvdFilmCostsReleasedNetOfAmortization    
Percentage of Unamortized Film Costs, Description P4Y    
Amortization period of unamortized film costs for released films 3 years    
Film costs released and completed, but not released expected to be amortized in next twelve months 105.5us-gaap_FilmCostsAmortizedInNextOperatingCycle    
Unamortized film costs for released and completed but not released films 187.9strza_TheatricalTelevisionAndDvdFilmCostsReleasedAndCompletedButNotReleasedNetOfAmortization    
Impairments of investment in films and television programs $ 2.1us-gaap_AssetImpairmentCharges $ 2.6us-gaap_AssetImpairmentCharges $ 17.2us-gaap_AssetImpairmentCharges