Revenue From Contracts With Customers - Summary of the Balance Sheet Location and Amounts of Contract Assets and Liabilities from Contracts with Customers (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred revenue - current	$ 107.0	$ 85.4
Total contract liabilities	184.9	156.0
Accounts Receivable, Net of Allowance for Doubtful Accounts [Member]
Schedule Of Contract Assets And Liabilities [Line Items]
Unbilled accounts receivable	16.8	16.8
Accrued and Other Liabilities [Member]
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred revenue - current	107.0	85.4
Other Noncurrent Liabilities [Member]
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred revenue - noncurrent	$ 77.9	$ 70.6