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Employee Benefit Plans
 3 Months Ended
Dec. 31, 2021
Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Abstract]  
Employee Benefit Plans

5.

Employee Benefit Plans

Components of net periodic pension benefit cost were as follows (in millions):

 

 

Three Months Ended

December 31,

 

 

 

2021

 

 

2020

 

Components of net periodic benefit cost

 

 

 

 

 

 

 

 

Service cost

 

$

2.6

 

 

$

2.9

 

Interest cost

 

 

4.3

 

 

 

4.1

 

Expected return on plan assets

 

 

(5.2

)

 

 

(4.9

)

Amortization of prior service cost (benefit)

 

 

0.6

 

 

 

0.6

 

Amortization of net actuarial loss (gain)

 

 

0.2

 

 

 

1.2

 

Expenses paid

 

 

2.5

 

 

 

0.7

 

Net periodic benefit cost

 

$

5.0

 

 

$

4.6

 

Components of net periodic other post-employment benefit cost were as follows (in millions):

 

 

Three Months Ended

December 31,

 

 

 

2021

 

 

2020

 

Components of net periodic benefit cost

 

 

 

 

 

 

 

 

Service cost

 

$

0.5

 

 

$

0.6

 

Interest cost

 

 

0.3

 

 

 

0.3

 

Amortization of prior service cost (benefit)

 

 

(0.4

)

 

 

(0.4

)

Amortization of net actuarial loss (gain)

 

 

0.1

 

 

 

0.1

 

Net periodic benefit cost

 

$

0.5

 

 

$

0.6

 

 

Actuarial valuations of the Company’s defined benefit plans were obtained as of December 31, 2021, due to the change in the fiscal year end as discussed in Note 1 of the Notes to Condensed Consolidated Financial Statements. Actuarial assumptions used in the December 31, 2021 valuations were reviewed as appropriate and were not materially different from the actuarial assumptions used in the valuations as of September 30, 2021.

Components of net periodic benefit cost other than “Service cost” and “Expenses paid” are included in “Miscellaneous, net” in the Condensed Consolidated Statements of Income.