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SEGMENT DATA - Narrative (Details) $ in Millions	3 Months Ended
SEGMENT DATA - Narrative (Details) $ in Millions	Mar. 31, 2020 USD ($) segment regional_sport_network market
Segment data
Number of reportable segments \| segment	2
Number of markets	89
Intersegment revenues \| $	$ 24
Operating segments \| Local News and Marketing Services
Segment data
Number of markets	89
Operating segments \| Sports
Segment data
Number of regional sports networks \| regional_sport_network	23