XML 56 R40.htm IDEA: XBRL DOCUMENT
v3.25.0.1

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |
Schedule of changes in accumulated other comprehensive income (loss) by component, net of tax | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ |  | Non- |  | ​ | ​ |  | Accumulated |
​ | ​ | ​ | ​ | ​ | Post- | ​ | Qualified | ​ | ​ | ​ | ​ | Other |
​ | ​ | Pension | ​ | Retirement | ​ | Pension | ​ | ​ | ​ | ​ | Comprehensive |
(In millions) | ​ | Benefits | ​ | Benefits | ​ | Benefits | ​ | Other | ​ | Income (Loss) |
Balance at December 31, 2022 | ​ | $ | (25.8) | ​ | $ | 18.7 | ​ | $ | 0.1 | ​ | $ | 0.1 | ​ | $ | (6.9) | ​
Amortization of prior service cost | ​ |  | — | ​ | ​ | (2.8) | ​ | ​ | — | ​ | ​ | — | ​ |  | (2.8) | ​
Amortization of net gain (loss) | ​ | ​ | 5.5 | ​ | ​ | (4.9) | ​ | ​ | (0.3) | ​ | ​ | — | ​ |  | 0.3 | ​
Foreign currency exchange | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.5) | ​ | ​ | (0.5) | ​
Other adjustments | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1.7 | ​ |  | 1.7 | ​
Balance at December 31, 2023 | ​ |  | (20.3) | ​ |  | 11.0 | ​ |  | (0.2) | ​ |  | 1.3 | ​ |  | (8.2) | ​
Amortization of prior service cost | ​ |  | — | ​ | ​ | (2.8) | ​ | ​ | — | ​ | ​ | — | ​ |  | (2.8) | ​
Amortization of net gain (loss) | ​ |  | 6.3 | ​ | ​ | (0.1) | ​ | ​ | (0.2) | ​ | ​ | — | ​ |  | 6.0 | ​
Foreign currency exchange | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1.9) | ​ | ​ | (1.9) | ​
Other adjustments | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 0.4 | ​ |  | 0.4 | ​
Balance at December 31, 2024 | ​ | $ | (14.0) | ​ | $ | 8.1 | ​ | $ | (0.4) | ​ | $ | (0.2) | ​ | $ | (6.5) | ​
​

X
- References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration