Benefit Plans (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Retirement Benefits [Abstract] | ||||
| Service cost | $ 0.4 | $ 0.3 | $ 1.2 | $ 0.9 |
| Interest cost | 0.9 | 1.0 | 2.7 | 3.0 |
| Expected return on plan assets | (0.2) | (0.2) | (0.6) | (0.6) |
| Net periodic benefit cost | $ 1.1 | $ 1.1 | $ 3.3 | $ 3.3 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|