Media Library, Software and Equipment - Summary of Media Library, Software and Equipment Stated at Lower of Cost or Net Realizable Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	$ 80,156	$ 62,471
Accumulated depreciation and amortization	(29,598)	(23,240)
Media library, software and equipment, net	50,558	39,231
Website Development Costs and Other Software [Member]
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	17,639	15,614
Studios, Computer and Telephone Equipment [Member]
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	2,060	1,826
Acquired Media [Member]
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	9,989	2,280
Licensed Media [Member]
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	5,874	4,995
Produced Media [Member]
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	41,701	34,773
Produced Media In Progress [Member]
Property, Plant and Equipment [Line Items]
Media library, software and equipment, gross	$ 2,893	$ 2,983

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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