Programs and Program Licenses - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Programs And Program Licenses [Abstract]
Obligations under contracts to purchase or license programs not yet available for broadcast	$ 240.0	$ 244.0
Program impairment	$ 70.4	$ 38.4	$ 32.0