Revenue and Contracts in Process - Remaining Unsatisfied Performance Obligations (Details) - Spectrum - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 $ in Millions	Dec. 31, 2022 USD ($)
Within One Year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 2.2
Remaining performance obligation period	1 year
Within Five Years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 0.3
Remaining performance obligation period	2 years
Broadcast station
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 2.5

Revenue and Contracts in Process - Remaining Unsatisfied Performance Obligations (Details) - Spectrum - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
$ in Millions

Dec. 31, 2022

USD ($)

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Remaining performance obligations

$ 2.2

Remaining performance obligation period

1 year

Within Five Years

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Remaining performance obligations

$ 0.3

Remaining performance obligation period

2 years

Broadcast station

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Remaining performance obligations

$ 2.5