Goodwill and Other Intangible Assets - Additional (Details) - WTOL and KWES $ in Millions	Jan. 02, 2019 USD ($)
Business Acquisition [Line Items]
Consideration transferred	$ 108.9
Working capital adjustment	$ 3.9
Finite-lived intangible assets, remaining amortization period	7 years
Goodwill, acquired during period	$ 9.0
Licensing Agreements
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	53.4
Retransmission And Network Affiliation Agreements
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 28.4

Business Combination, Working Capital Adjustment

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