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 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Deferred revenue - current | $ 85.4 | $ 88.9 |
| Total contract liabilities | 156.0 | 146.0 |
| Accounts Receivable, Net of Allowance for Doubtful Accounts [Member] | ||
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Unbilled accounts receivable | 16.8 | 26.8 |
| Accrued and Other Liabilities [Member] | ||
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Deferred revenue - current | 85.4 | 88.9 |
| Other Noncurrent Liabilities [Member] | ||
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Deferred revenue - noncurrent | $ 70.6 | $ 57.1 |