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v3.26.1

BENEFIT PLANS: (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Post retirement defined benefit plans |  |
Defined benefit plan, net periodic benefit costs |  |
Service cost | $ 1.6 | $ 1.2
Interest cost | 2.0 | 1.9
Expected return on plan assets | (4.7) | (3.6)
Amortization of prior service cost/ (credit) | 0.1 | 0.1
Amortization of net loss/(gain) | (0.6) | 0.1
Net periodic (benefit) cost | (1.6) | (0.3)
Post-retirement health care plans |  |
Defined benefit plan, net periodic benefit costs |  |
Interest cost | 1.2 | 1.0
Net periodic (benefit) cost | $ 1.2 | $ 1.0

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