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 |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Deferred revenue - current | $ 24.3 | $ 18.5 |
| Total contract liabilities | 26.0 | 19.9 |
| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsReceivableNetCurrent | ||
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Unbilled accounts receivable | 14.8 | 9.3 |
| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccruedLiabilitiesAndOtherLiabilities | ||
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Deferred revenue - current | 24.3 | 18.5 |
| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent | ||
| Schedule Of Contract Assets And Liabilities [Line Items] | ||
| Deferred revenue - noncurrent | $ 1.7 | $ 1.4 |