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Organization, Nature of Operations, and Principles of Consolidation - Additional Information (Detail)
 3 Months Ended
Mar. 31, 2021
Title
Channel
Organization Nature Of Operations And Principles Of Consolidation [Line Items]  
Number of titles available in digital content library | Title 8,000
Number of channels | Channel 4
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jan. 01, 2021
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] true
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201912Member
Minimum [Member]  
Organization Nature Of Operations And Principles Of Consolidation [Line Items]  
Percentage of digital streaming exclusively available for subscribers 80.00%
Percentage of produced and owned content views 80.00%