Segment Data - Separate Financial Data for Each of Company's Operating Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net revenue	$ 1,106,867	$ 956,209	$ 760,192
Cost of revenue	800,401	623,916	466,517
Direct operating expenses	128,470	122,611	116,449
Selling, general and administrative expenses	91,979	75,165	56,585
Depreciation and amortization	28,007	25,697	22,420
Operating income (loss)	(4,521)	40,252	60,471
Corporate expenses	50,294	49,404	32,993
Change in fair value of contingent consideration	(2,539)	14,210	8,224
Impairment charge	13,267	1,600	3,023
Foreign currency (gain) loss	900	2,972	508
Other operating (gain) loss	609	382	(6,998)
Capital expenditures	27,203	12,634	5,611
Total assets	$ 865,946	$ 880,841	851,342
Percentage change in net revenue	16.00%	26.00%
Percentage change in direct operating expenses	5.00%	5.00%
Percentage change in selling, general and administrative expenses	22.00%	33.00%
Percentage change in depreciation and amortization	9.00%	15.00%
Percentage change in segment operating profit (loss)	(47.00%)	11.00%
Percentage change in corporate expenses	2.00%	50.00%
Percentage change in fair value of contingent consideration		73.00%
Percentage change in impairment charge	729.00%	(47.00%)
Percentage change in foreign currency (gain) loss	(70.00%)	485.00%
Percentage change in other operating (gain) loss	59.00%
Percentage change in operating income (loss)		(33.00%)
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 58,010	$ 108,820	98,221
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Corporate expenses	50,294	49,404	32,993
Television
Segment Reporting Information [Line Items]
Direct operating expenses	60,699	61,301	63,016
Selling, general and administrative expenses	20,183	20,657	18,381
Depreciation and amortization	10,586	11,126	12,477
Capital expenditures	13,199	5,887	2,833
Total assets	$ 342,818	$ 363,904	433,303
Percentage change in direct operating expenses	(1.00%)	(3.00%)
Percentage change in selling, general and administrative expenses	(2.00%)	12.00%
Percentage change in depreciation and amortization	(5.00%)	(11.00%)
Percentage change in segment operating profit (loss)	(43.00%)	(2.00%)
Television \| Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 29,469	$ 51,646	52,965
Digital
Segment Reporting Information [Line Items]
Cost of revenue	800,401	623,916	466,517
Direct operating expenses	37,839	32,518	25,481
Selling, general and administrative expenses	57,928	41,612	26,123
Depreciation and amortization	16,085	12,148	8,377
Capital expenditures	6,030	6,186	2,073
Total assets	$ 425,624	$ 408,027	309,347
Percentage change in cost of revenue	28.00%	34.00%
Percentage change in direct operating expenses	16.00%	28.00%
Percentage change in selling, general and administrative expenses	39.00%	59.00%
Percentage change in depreciation and amortization	32.00%	45.00%
Percentage change in segment operating profit (loss)	(45.00%)	28.00%
Digital \| Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 20,477	$ 36,909	28,840
Audio
Segment Reporting Information [Line Items]
Direct operating expenses	29,932	28,792	27,952
Selling, general and administrative expenses	13,868	12,896	12,081
Depreciation and amortization	1,336	2,423	1,566
Capital expenditures	7,974	561	705
Total assets	$ 97,504	$ 108,910	108,692
Percentage change in direct operating expenses	4.00%	3.00%
Percentage change in selling, general and administrative expenses	8.00%	7.00%
Percentage change in depreciation and amortization	(45.00%)	55.00%
Percentage change in segment operating profit (loss)	(60.00%)	23.00%
Audio \| Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 8,064	$ 20,265	16,416
Advertising and Retransmission Consent \| Television
Segment Reporting Information [Line Items]
Net revenue	$ 120,937	$ 144,730	146,839
Percentage change in net revenue	(16.00%)	(1.00%)
Advertising and Retransmission Consent \| Digital
Segment Reporting Information [Line Items]
Net revenue	$ 932,730	$ 747,103	555,338
Percentage change in net revenue	25.00%	35.00%
Advertising and Retransmission Consent \| Audio
Segment Reporting Information [Line Items]
Net revenue	$ 53,200	$ 64,376	$ 58,015
Percentage change in net revenue	(17.00%)	11.00%

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