Retirement and Other Postretirement Benefit Plans - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Defined Benefit Retirement Plans | ||||
| Amounts recognized on the balance sheet: | ||||
| Expense related to the defined benefit retirement plans | $ 0.4 | $ 0.5 | $ 1.1 | $ 1.5 |