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Participations and Residuals (Narrative) (Details) - USD ($)
$ in Millions
9 Months Ended
Dec. 31, 2016
Mar. 31, 2016
Participations And Residuals [abstract]    
Contribution of TIK Films, in general, subject to certain limitations 25.00%  
Theatrical slate participation arrangement, length of term ending January 23, 2018 3 years  
Theatrical slate participation arrangement, amount payable to TIK Films $ 131 $ 61