Organization, Nature of Operations, and Principles of Consolidation - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2019 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
Percentage of produced and owned content of total views	80.00%
Minimum [Member]
Organization Nature Of Operations And Principles Of Consolidation [Line Items]
Percentage of digital streaming exclusively available for subscribers	90.00%