Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) Market Agreement Advertiser AdvertisingCustomer shares	Dec. 31, 2021 USD ($) Advertiser shares	Dec. 31, 2020 USD ($) shares
Accounting Policies [Line Items]
Cash and cash equivalents	$ 110,691	$ 185,094	$ 119,162
Restricted cash	753	749	749
Available for sale debt securities	$ 44,528
Number of advertisers represent more than five percent of trade receivables | Advertiser	0
Number of advertising customer represented more than five percent of revenue | AdvertisingCustomer	0
Estimated losses for bad debts	$ 3,400	3,500	2,500
Bad debts actually charged off	3,300	900	1,500
Long term debt fair value	$ 204,000	209,100
Percentage of tax benefit recognized	50.00%
Advertising expense	$ 100	100	100
Net revenue	956,209	760,192	344,026
Broadcast trade cost	$ 400	$ 400	$ 200
Stock options granted | shares	0	0	0
Shares of dilutive securities not included in computation of diluted earnings per share | shares	623,152	465,993	892,720
Other comprehensive income (loss), net of tax	$ (533)	$ 79	$ (925)
Trade Receivables | Customer Concentration Risk | Largest Advertisers
Accounting Policies [Line Items]
Number of largest advertisers | Advertiser	5	5
Concentration risk percentage	2.00%	3.00%
Revenue | Customer Concentration Risk | Commercial Partner
Accounting Policies [Line Items]
Concentration risk percentage	49.00%	55.00%
Revenue | Customer Concentration Risk | Largest Advertisers
Accounting Policies [Line Items]
Concentration risk percentage	14.00%	13.00%
Broadcast Equipment
Accounting Policies [Line Items]
Net revenue	$ 400	$ 400	$ 200
TelevisaUnivision
Accounting Policies [Line Items]
Number of marketing and sales agreements | Agreement	2
Number of markets involved in sales and marketing | Market	3
Outside the United States
Accounting Policies [Line Items]
Cash and cash equivalents	$ 89,700	$ 53,700