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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Sep. 30, 2021
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]  
Accumulated Other Comprehensive Income (Loss)

21.    Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss) by component were as follows (in millions):

 

 

Employee Pension and

Postretirement

Benefits, Net of Tax

 

 

Cumulative

Translation

Adjustments

 

 

Derivative Instruments,

Net of Tax

 

 

Accumulated Other

Comprehensive

Income (Loss)

 

Balance at September 30, 2018

 

$

(10.9

)

 

$

(96.2

)

 

$

0.3

 

 

$

(106.8

)

Tax impact of U.S. tax reform on Accumulated Other Comprehensive Income (ASU 2018-02)

 

 

(9.1

)

 

 

—

 

 

 

—

 

 

 

(9.1

)

Balance at October 1, 2018

 

 

(20.0

)

 

 

(96.2

)

 

 

0.3

 

 

 

(115.9

)

Other comprehensive income (loss) before reclassifications

 

 

(49.5

)

 

 

(36.3

)

 

 

—

 

 

 

(85.8

)

Amounts reclassified from accumulated other comprehensive income (loss)

 

 

0.1

 

 

 

—

 

 

 

—

 

 

 

0.1

 

Net current period other comprehensive income (loss)

 

 

(49.4

)

 

 

(36.3

)

 

 

—

 

 

 

(85.7

)

Balance at September 30, 2019

 

 

(69.4

)

 

 

(132.5

)

 

 

0.3

 

 

 

(201.6

)

Other comprehensive income (loss) before reclassifications

 

 

(29.3

)

 

 

30.4

 

 

 

(0.5

)

 

 

0.6

 

Amounts reclassified from accumulated other comprehensive income (loss)

 

 

2.8

 

 

 

—

 

 

 

(0.2

)

 

 

2.6

 

Net current period other comprehensive income (loss)

 

 

(26.5

)

 

 

30.4

 

 

 

(0.7

)

 

 

3.2

 

Balance at September 30, 2020

 

 

(95.9

)

 

 

(102.1

)

 

 

(0.4

)

 

 

(198.4

)

Other comprehensive income (loss) before reclassifications

 

 

57.1

 

 

 

3.8

 

 

 

1.5

 

 

 

62.4

 

Amounts reclassified from accumulated other comprehensive income (loss)

 

 

4.6

 

 

 

—

 

 

 

0.4

 

 

 

5.0

 

Net current period other comprehensive income (loss)

 

 

61.7

 

 

 

3.8

 

 

 

1.9

 

 

 

67.4

 

Balance at September 30, 2021

 

$

(34.2

)

 

$

(98.3

)

 

$

1.5

 

 

$

(131.0

)

 

Reclassifications out of accumulated other comprehensive income (loss) included in the computation of net periodic pension and postretirement benefit cost (See Note 5 of the Notes to Consolidated Financial Statements for additional details regarding employee benefit plans) were as follows (in millions):

 

 

 

Classification of

 

Fiscal Year Ended September 30,

 

 

 

income (expense)

 

2021

 

 

2020

 

 

2019

 

Amortization of employee pension and postretirement benefits items

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Prior service costs

 

Miscellaneous, net

 

$

0.9

 

 

$

0.7

 

 

$

0.2

 

Actuarial (gains) losses

 

Miscellaneous, net

 

 

5.2

 

 

 

3.1

 

 

 

—

 

Total before tax

 

 

 

 

6.1

 

 

 

3.8

 

 

 

0.2

 

Tax benefit

 

 

 

 

(1.5

)

 

 

(1.0

)

 

 

(0.1

)

Net of tax

 

 

 

$

4.6

 

 

$

2.8

 

 

$

0.1