Segment Information - Separate Financial Data for Each of Company's Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net revenue	$ 239,006	$ 197,172
Cost of revenue	167,756	129,891
Direct operating expenses	29,862	27,823
Selling, general and administrative expenses	22,768	16,039
Depreciation and amortization	6,471	6,395
Operating income (loss)	6,668	4,166
Corporate expenses	10,502	8,724
Change in fair value of contingent consideration	(4,065)	5,100
Foreign currency (gain) loss	(956)	(847)
Other operating (gain) loss		(119)
Interest expense	(4,028)	(1,836)
Interest income	860	406
Dividend income	18	3
Realized gain (loss) on marketable securities	(32)
Gain (loss) on debt extinguishment	(1,556)
Income (loss) before income taxes	1,930	2,739
Capital expenditures	8,550	1,517
Total assets	$ 878,283		$ 880,841
Percentage change in net revenue	21.00%
Percentage change in direct operating expenses	7.00%
Percentage change in selling, general and administrative expenses	42.00%
Percentage change in depreciation and amortization	1.00%
Percentage change in segment operating profit (loss)	(29.00%)
Percentage change in corporate expenses	20.00%
Percentage change in foreign currency (gain) loss	13.00%
Percentage change in other operating (gain) loss	(100.00%)
Percentage change in operating income (loss)	60.00%
Percentage change in interest expense	119.00%
Percentage change in interest income	112.00%
Percentage change in dividend income	500.00%
Percentage change in income (loss) before income taxes	(30.00%)
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 12,149	17,024
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Corporate expenses	10,502	8,724
Digital
Segment Reporting Information [Line Items]
Cost of revenue	167,756	129,891
Direct operating expenses	8,010	7,133
Selling, general and administrative expenses	13,529	8,102
Depreciation and amortization	3,631	2,677
Capital expenditures	1,111	769
Total assets	$ 415,204		408,027
Percentage change in cost of revenue	29.00%
Percentage change in direct operating expenses	12.00%
Percentage change in selling, general and administrative expenses	67.00%
Percentage change in depreciation and amortization	36.00%
Percentage change in segment operating profit (loss)	(40.00%)
Digital | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 3,556	5,908
Digital | Advertising and Retransmission Consent
Segment Reporting Information [Line Items]
Net revenue	$ 196,482	153,711
Percentage change in net revenue	28.00%
Television
Segment Reporting Information [Line Items]
Selling, general and administrative expenses	$ 5,340	4,957
Depreciation and amortization	2,658	2,893
Capital expenditures	7,336	460
Total assets	$ 355,996		363,904
Percentage change in direct operating expenses	3.00%
Percentage change in selling, general and administrative expenses	8.00%
Percentage change in depreciation and amortization	(8.00%)
Percentage change in segment operating profit (loss)	(13.00%)
Television | Operating Segments
Segment Reporting Information [Line Items]
Direct operating expenses	$ 14,759	14,283
Operating income (loss)	7,555	8,734
Television | Advertising and Retransmission Consent
Segment Reporting Information [Line Items]
Net revenue	$ 30,312	30,867
Percentage change in net revenue	(2.00%)
Audio
Segment Reporting Information [Line Items]
Direct operating expenses	$ 7,093	6,407
Selling, general and administrative expenses	3,899	2,980
Depreciation and amortization	182	825
Capital expenditures	103	288
Total assets	$ 107,083		$ 108,910
Percentage change in direct operating expenses	11.00%
Percentage change in selling, general and administrative expenses	31.00%
Percentage change in depreciation and amortization	(78.00%)
Percentage change in segment operating profit (loss)	(56.00%)
Audio | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 1,038	2,382
Audio | Advertising and Retransmission Consent
Segment Reporting Information [Line Items]
Net revenue	$ 12,212	$ 12,594
Percentage change in net revenue	(3.00%)