Subsequent Event - Additional Information (Detail) - Cisneros Interactive - USD ($) $ in Billions		9 Months Ended
	Oct. 13, 2020	Sep. 30, 2020
Subsequent Event [Line Items]
Business acquisition description of acquired entity		Subject to the terms of the Put and Call Agreement, the Sellers have the right (the “Put Option”) to cause the Acquiror to purchase all (but not less than all) of the remaining 49% of the issued and outstanding shares of Cisneros Interactive at a purchase price to be based on a pre-determined multiple of six times Cisneros Interactive’s 12-month EBITDA in the preceding calendar year. The Sellers may exercise the Put Option upon the occurrence of certain events, starting in April 2022.
Call Option
Subsequent Event [Line Items]
Business acquisition description of acquired entity		Additionally, subject to the terms of the Put and Call Agreement, the Acquiror has the right (the “Call Option”), in calendar year 2024, to purchase all (but not less than all) of the remaining 49% of the issued and outstanding shares of Cisneros Interactive at a purchase price to be based on a pre-determined multiple of six times of Cisneros Interactive’s 12-month EBITDA in calendar year 2023.
Subsequent Event
Subsequent Event [Line Items]
Business acquisition date	Oct. 13, 2020
Ownership Interest acquired	51.00%
Cash acquired	$ 29
Subsequent Event | Put Option
Subsequent Event [Line Items]
Agreed future ownership Interest acquired	49.00%
Subsequent Event | Call Option
Subsequent Event [Line Items]
Agreed future ownership Interest acquired	49.00%