RELATED PERSON TRANSACTIONS - WG Communications Group (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Related Party Transaction [Line Items]
Revenue	$ 773.0	$ 917.0	$ 2,333.0	$ 2,544.0
Sinclair Broadcast Group, LLC
Related Party Transaction [Line Items]
Revenue	667.0	845.0	2,040.0	2,322.0
WG Communications Group | Related Party
Related Party Transaction [Line Items]
Revenue	0.1	0.1	0.2	0.2
Amount paid		0.1	0.1	0.1
WG Communications Group | Related Party | Sinclair Broadcast Group, LLC
Related Party Transaction [Line Items]
Revenue	$ 0.1	0.1	0.2	0.2
Amount paid		$ 0.1	$ 0.1	$ 0.1