Description of business, use of estimates, basis of presentation, and summary of significant accounting policies - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,711,998	$ 3,101,971	$ 2,910,930
Distribution
Disaggregation of Revenue [Line Items]
Total revenues	1,465,603	1,476,075	1,544,550
Advertising & Marketing Services
Disaggregation of Revenue [Line Items]
Total revenues	1,169,167	1,214,640	1,279,543
Political
Disaggregation of Revenue [Line Items]
Total revenues	38,787	373,229	45,800
Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 38,441	$ 38,027	$ 41,037

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

TEGNA INC 10-K