Segment Information - Separate Financial Data for Each of Company's Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net revenue	$ 277,445	$ 239,006
Cost of revenue	203,229	167,756
Direct operating expenses	35,572	29,862
Selling, general and administrative expenses	26,695	22,768
Depreciation and amortization	7,133	6,471
Operating income (loss)	(55,899)	6,668
Corporate expenses	12,248	10,502
Change in fair value of contingent consideration	(1,420)	(4,065)
Impairment charge	49,438
Foreign currency (gain) loss	449	(956)
Interest expense	(4,559)	(4,028)
Interest income	1,130	860
Dividend income	10	18
Realized gain (loss) on marketable securities	(113)	(32)
Gain (loss) on debt extinguishment	(40)	(1,556)
Income (loss) before income taxes	(59,471)	1,930
Capital expenditures	2,173	8,550
Total assets	$ 804,990		$ 865,946
Percentage change in net revenue	16.00%
Percentage change in direct operating expenses	19.00%
Percentage change in selling, general and administrative expenses	17.00%
Percentage change in depreciation and amortization	10.00%
Percentage change in segment operating profit (loss)	(60.00%)
Percentage change in corporate expenses	17.00%
Percentage change in fair value of contingent consideration	(65.00%)
Percentage change in interest expense	13.00%
Percentage change in interest income	31.00%
Percentage change in dividend income	(44.00%)
Percentage change in realized gain (loss) on marketable securities	253.00%
Percentage change in gain (loss) on debt extinguishment	(97.00%)
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 4,816	12,149
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Corporate expenses	12,248	10,502
Digital
Segment Reporting Information [Line Items]
Cost of revenue	203,229	167,756
Direct operating expenses	10,729	8,010
Selling, general and administrative expenses	17,348	13,529
Depreciation and amortization	3,846	3,631
Capital expenditures	181	1,111
Total assets	$ 361,238		425,624
Percentage change in cost of revenue	21.00%
Percentage change in direct operating expenses	34.00%
Percentage change in selling, general and administrative expenses	28.00%
Percentage change in depreciation and amortization	6.00%
Percentage change in segment operating profit (loss)	(34.00%)
Digital | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 2,339	3,556
Digital | Advertising and Retransmission Consent
Segment Reporting Information [Line Items]
Net revenue	$ 237,491	196,482
Percentage change in net revenue	21.00%
Television
Segment Reporting Information [Line Items]
Direct operating expenses	$ 16,928	14,759
Selling, general and administrative expenses	6,040	5,340
Depreciation and amortization	2,926	2,658
Capital expenditures	1,468	7,336
Total assets	$ 347,828		342,818
Percentage change in direct operating expenses	15.00%
Percentage change in selling, general and administrative expenses	13.00%
Percentage change in depreciation and amortization	10.00%
Percentage change in segment operating profit (loss)	(65.00%)
Television | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 2,655	7,555
Television | Advertising and Retransmission Consent
Segment Reporting Information [Line Items]
Net revenue	$ 28,549	30,312
Percentage change in net revenue	(6.00%)
Audio
Segment Reporting Information [Line Items]
Direct operating expenses	$ 7,915	7,093
Selling, general and administrative expenses	3,307	3,899
Depreciation and amortization	361	182
Capital expenditures	524	103
Total assets	$ 95,924		$ 97,504
Percentage change in direct operating expenses	12.00%
Percentage change in selling, general and administrative expenses	(15.00%)
Percentage change in depreciation and amortization	98.00%
Audio | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ (178)	1,038
Audio | Advertising and Retransmission Consent
Segment Reporting Information [Line Items]
Net revenue	$ 11,405	$ 12,212
Percentage change in net revenue	(7.00%)