Other matters (Details)			1 Months Ended		3 Months Ended
	May 26, 2023 USD ($) Preliminaryapproval	Oct. 03, 2018 Defendant	Jun. 30, 2019 Defendant	Dec. 13, 2018 Defendant	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Business Acquisition [Line Items]
Corporate - General and administrative expenses					$ 10,156,000	$ 14,798,000
Accounts receivable					594,829,000		$ 604,300,000
Equity And Debt Investment | Related Party
Business Acquisition [Line Items]
Cost of revenues					200,000	$ 14,300,000
Accounts receivable					$ 500,000		$ 400,000
Clay, Massey & Associates, P.C. v. Gray Television
Business Acquisition [Line Items]
Number of other broadcasters settling DOJ complaint (defendant) | Defendant		16	4
Number of co defendants | Preliminaryapproval	4
Settlement amount	$ 0
Loss contingency, damages sought, value	$ 48,000,000
Loss contigency, settlement agreement date, approved by court					Dec. 31, 2023
Settled Litigation
Business Acquisition [Line Items]
Number of other broadcasters settling DOJ complaint (defendant) | Defendant			4	7