Unconsolidated Entities - Summary of Investments in and Advances to our Unconsolidated Entities (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Other Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Investment in early and growth-stage companies	$ 193.2	$ 162.6