Investments - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Equity method investments, book value	$ 1,115.3	$ 1,208.9
Cash distributions received	249.6	239.5	$ 223.7
Income on equity investments, net, before amortization of basis difference	223.4	250.3	217.9
Amortization of basis difference (expense)	70.0	125.7	147.7
Equity method investment, basis difference amount	466.6	536.1
Equity method investment basis difference related to investees goodwill	$ 500.4
Tribune [Member]
Schedule Of Equity Method Investments [Line Items]
Weighted average remaining useful life of assets subjects to amortization of basis difference	6 years 8 months 12 days
TV Food Network [Member]
Schedule Of Equity Method Investments [Line Items]
Ownership stake	31.30%
Ownership interest in affiliate of partnership	68.70%
Equity method investments, book value	$ 1,099.0	1,191.0
Cash distributions received	249.4	239.5	223.3
Income on equity investments, net, before amortization of basis difference	226.7	253.4	220.3
Amortization of basis difference (expense)	$ 69.5	$ 125.2	$ 147.2