v3.26.3
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)
9 Months Ended
Sep. 30, 2026
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)  
Schedule of changes in accumulated other comprehensive income (loss) by component, net of tax

Changes in accumulated other comprehensive income (loss) by component, net of tax, for the nine months ended September 30, 2026 consisted of the following:

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Non-

​

​

​

Accumulated

​

​

​

​

​

​

Post-

​

Qualified

​

​

​

Other

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​

​

Pension

​

Retirement

​

Pension

​

​

​

Comprehensive

​

(In millions)

  ​ ​ ​

Benefits

  ​ ​ ​

Benefits

  ​ ​ ​

Benefits

  ​ ​ ​

Other

  ​ ​ ​

Income (Loss)

 

Balance at December 31, 2025

​

$

(8.6)

​

$

8.9

​

$

(0.7)

​

$

2.0

​

$

1.6

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Amortization of prior service credit

​

​

—

​

​

(0.4)

​

​

—

​

​

—

​

​

(0.4)

​

Amortization of net actuarial gain (loss)

​

​

—

​

​

(0.1)

​

​

—

​

​

—

​

​

(0.1)

​

Foreign currency exchange

​

​

—

​

​

—

​

​

—

​

​

(0.2)

​

​

(0.2)

​

Other adjustments

​

​

—

​

​

—

​

​

—

​

​

0.2

​

​

0.2

​

Balance at March 31, 2026

​

​

(8.6)

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​

8.4

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​

(0.7)

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​

2.0

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​

1.1

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Amortization of prior service credit

​

​

—

​

​

(0.4)

​

​

—

​

​

—

​

​

(0.4)

​

Amortization of net actuarial gain (loss)

​

​

—

​

​

(0.1)

​

​

—

​

​

—

​

​

(0.1)

​

Foreign currency exchange

​

​

—

​

​

—

​

​

—

​

​

(1.9)

​

​

(1.9)

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Balance at June 30, 2026

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​

(8.6)

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​

7.9

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​

(0.7)

​

​

0.1

​

​

(1.3)

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Amortization of prior service credit

​

​

—

​

​

(0.4)

​

​

—

​

​

—

​

​

(0.4)

​

Amortization of net actuarial gain (loss)

​

​

—

​

​

(0.8)

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​

—

​

​

—

​

​

(0.8)

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Foreign currency exchange

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​

—

​

​

—

​

​

—

​

​

0.3

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​

0.3

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Balance at September 30, 2026

​

$

(8.6)

​

$

6.7

​

$

(0.7)

​

$

0.4

​

$

(2.2)

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​

Changes in accumulated other comprehensive income (loss) by component, net of tax, for the nine months ended September 30, 2025 consisted of the following:

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​

​

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​

​

​

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​

​

​

​

​

​

​

​

​

Non-

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​

​

Accumulated

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​

​

​

​

​

Post-

​

Qualified

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​

​

Other

​

​

​

Pension

​

Retirement

​

Pension

​

​

​

Comprehensive

​

(In millions)

  ​ ​ ​

Benefits

  ​ ​ ​

Benefits

  ​ ​ ​

Benefits

  ​ ​ ​

Other

  ​ ​ ​

Income (Loss)

 

Balance at December 31, 2024

​

$

(14.0)

​

$

8.1

​

$

(0.4)

​

$

(0.2)

​

$

(6.5)

​

Amortization of prior service credit

​

​

—

​

​

(0.7)

​

​

—

​

​

—

​

​

(0.7)

​

Amortization of net actuarial gain (loss)

​

​

—

​

​

(0.1)

​

​

—

​

​

—

​

​

(0.1)

​

Foreign currency exchange

​

​

—

​

​

—

​

​

—

​

​

0.3

​

​

0.3

​

Other adjustments

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​

—

​

​

—

​

​

—

​

​

0.2

​

​

0.2

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Balance at March 31, 2025

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​

(14.0)

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​

7.3

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​

(0.4)

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​

0.3

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​

(6.8)

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Amortization of prior service credit

​

​

—

​

​

(0.7)

​

​

—

​

​

—

​

​

(0.7)

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Amortization of net actuarial gain (loss)

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​

—

​

​

(0.2)

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​

—

​

​

—

​

​

(0.2)

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Foreign currency exchange

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​

—

​

​

—

​

​

—

​

​

1.4

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​

1.4

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Balance at June 30, 2025

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​

(14.0)

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​

6.4

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​

(0.4)

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​

1.7

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​

(6.3)

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Amortization of prior service credit

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​

—

​

​

(0.6)

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​

—

​

​

—

​

​

(0.6)

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Amortization of net actuarial gain (loss)

​

​

—

​

​

(0.1)

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​

—

​

​

—

​

​

(0.1)

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Foreign currency exchange

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​

—

​

​

—

​

​

—

​

​

(1.3)

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​

(1.3)

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Other adjustments

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​

—

​

​

—

​

​

—

​

​

(0.3)

​

​

(0.3)

​

Balance at September 30, 2025

​

$

(14.0)

​

$

5.7

​

$

(0.4)

​

$

0.1

​

$

(8.6)

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​