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Revenue and Contracts in Process - Schedule of Spectrum Segment Disaggregation of Revenue (Details) - Spectrum - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Revenue	$ 5.7	$ 6.2	$ 11.9	$ 12.5
Broadcast station
Segment Reporting Information [Line Items]
Revenue	$ 5.7	$ 6.2	$ 11.9	$ 12.5

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