Media Library, Software and Equipment - Schedule of Future Depreciation and Amortization (Detail) $ in Thousands	Dec. 31, 2021 USD ($)
Schedule Of Future Depreciation And Amortization [Line Items]
2022	$ 13,273
2023	10,822
2024	8,434
2025	6,209
2026	5,050
Thereafter	6,770
Future depreciation and amortization expense	50,558
Acquired Media [Member]
Schedule Of Future Depreciation And Amortization [Line Items]
2022	1,332
2023	1,332
2024	1,332
2025	1,214
2026	1,175
Thereafter	2,528
Future depreciation and amortization expense	8,913
Licensed Media [Member]
Schedule Of Future Depreciation And Amortization [Line Items]
2022	1,044
2023	765
2024	625
2025	444
2026	262
Thereafter	225
Future depreciation and amortization expense	3,365
Produced Media [Member]
Schedule Of Future Depreciation And Amortization [Line Items]
2022	5,706
2023	5,459
2024	5,098
2025	4,471
2026	3,579
Thereafter	4,017
Future depreciation and amortization expense	28,330
Website Development Costs and Other Software [Member]
Schedule Of Future Depreciation And Amortization [Line Items]
2022	4,481
2023	2,597
2024	850
Future depreciation and amortization expense	7,928
Studios, Computer and Telephone Equipment [Member]
Schedule Of Future Depreciation And Amortization [Line Items]
2022	710
2023	669
2024	529
2025	80
2026	34
Future depreciation and amortization expense	$ 2,022