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Pensions (Tables)
9 Months Ended
Dec. 31, 2025
Pensions  
Pension Cost

Three months ended December 31, 

Nine months ended December 31, 

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2025

  ​ ​ ​

2024

Service cost

$

$

$

0.1

$

0.1

Interest cost

 

1.7

 

2.3

 

6.3

6.8

Expected return on plan assets

 

(1.5)

 

(2.2)

 

(5.8)

(6.5)

Amortization of unrecognized net loss

 

0.7

 

1.2

 

3.1

3.5

Pension termination charge (a)

 

116.1

 

 

116.1

 

Net periodic benefit cost

$

117.0

$

1.3

$

119.8

$

3.9

____

(a)As described above, the Company recorded a $116.1 million charge during the third quarter of fiscal 2026 in connection with the termination of its primary U.S. pension plan.