Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 132,270	$ 48,346	$ 238,041	$ 202,280
Other comprehensive income, before tax:
Foreign currency translation adjustments	(93)	(318)	37	(775)
Recognition of previously deferred post-retirement benefit plan costs	1,551	1,431	4,653	4,293
Pension lump-sum payment charges	0	0	0	686
Other comprehensive income, before tax	1,458	1,113	4,690	4,204
Income tax effect related to components of other comprehensive income	(366)	(278)	(1,180)	(1,052)
Other comprehensive income, net of tax	1,092	835	3,510	3,152
Comprehensive income	133,362	49,181	241,551	205,432
Comprehensive (income) loss attributable to redeemable noncontrolling interest	(51)	0	433	0
Comprehensive income attributable to TEGNA Inc.	$ 133,311	$ 49,181	$ 241,984	$ 205,432