Fair Value Measurement (Carrying Value and Estimated Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Broadcast rights payable	$ 31,660	$ 10,173
Long-term debt	700,625	695,000
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Broadcast rights payable	30,544	9,655
Long-term debt	$ 700,714	$ 695,533