Revenues (Tables)

12 Months Ended

Dec. 31, 2020

Revenue From Contract With Customer [Abstract]

Summary of Disaggregation of Revenue by Major Source and by Sales Channel

The following table presents our revenues disaggregated by major source (in thousands):

	Years Ended December 31,
	2020		2019		2018
Broadcast advertising	$	152,677	$	148,082	$	169,009
Digital advertising		143,309		68,908		80,982
Spectrum usage rights		5,429		13,061		2,976
Retransmission consent		36,766		35,362		35,066
Other		5,845		8,162		9,782
Total revenue	$	344,026	$	273,575	$	297,815

The following table further disaggregates the Company’s broadcast advertising revenue by sales channel (in thousands):

	Years Ended December 31,
	2020		2019		2018
Local direct	$	21,334	$	25,972	$	27,522
Local agency		48,702		58,425		61,226
National agency		82,641		63,685		80,261
Total  revenue	$	152,677	$	148,082	$	169,009

Summary of Deferred Revenue

(in thousands)	December 31, 2019		Increase	Decrease *		December 31, 2020
Deferred revenue	$	2,390	3,127	(2,390	)	$	3,127

* The amount disclosed in the decrease column reflects revenue that has been recorded during the year ended December 31, 2020.

(in thousands)	December 31, 2018		Increase	Decrease *		December 31, 2019
Deferred revenue	$	2,759	2,390	(2,759	)	$	2,390

* The amount disclosed in the decrease column reflects revenue that has been recorded during the year ended December 31, 2019.