Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Revenue and Expense Recognized for Advertising Barter Transactions

The amount of revenue and expense recognized for advertising barter transactions is as follows:

	2020		2019		2018
Net revenues	$	8,088	$	9,636	$	8,955
Direct advertising expenses	$	3,971	$	3,982	$	3,633
General and administrative expenses	$	3,144	$	4,986	$	4,758