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Pensions
 6 Months Ended
Sep. 30, 2025
Pensions  
Pensions

Note 5: Pensions

Pension cost included the following components:

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Three months ended September 30, 

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Six months ended September 30, 

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2025

    

2024

    

2025

    

2024

Service cost

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$

0.1

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$

0.1

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$

0.1

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​

0.1

Interest cost

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2.2

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2.2

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4.6

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4.5

Expected return on plan assets

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(2.1)

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(2.1)

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(4.3)

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(4.3)

Amortization of unrecognized net loss

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1.2

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1.1

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2.4

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2.3

Net periodic benefit cost

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$

1.4

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$

1.3

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$

2.8

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$

2.6

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The Company did not make cash contributions to its U.S. pension plan during the six months ended September 30, 2025.

In June 2024, the Company approved the termination of its primary U.S. pension plan. The Company has offered certain participants the option to receive their pension benefits in the form of a lump-sum distribution and plans to purchase annuity contracts to transfer its remaining obligations under the plan. In connection with the plan termination, the Company expects to make additional cash contributions in the range of $20.0 million to $25.0 million to fully fund the plan, on a plan termination basis, and to record non-cash pension settlement charges totaling approximately $120.0 million to $125.0 million during the second half of fiscal 2026. The timing and amount of the final cash contribution and settlement charges could materially differ from the Company’s estimates due to the nature and timing of participant settlements, prevailing market and economic conditions, the duration of the termination process, or other factors.