XML 50 R37.htm IDEA: XBRL DOCUMENT
v3.21.2

Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
Equity [Abstract] |
After-tax components of comprehensive income (loss) | The following table sets forth the after-tax components of accumulated other comprehensive income and changes thereto recorded during the nine months ended September 30, 2021:
| Foreign Currency Translation Adjustment |  |  |  | Prior Service Credit Associated with Postretirement Plans |  |  |  |  |  | Total Accumulated Other Comprehensive Income
| (Dollars in millions)
December 31, 2020 | $ | 1.8 |  |  |  |  | $ | 204.0 |  |  |  |  |  |  | $ | 205.8 |
Reclassification from other comprehensive income to earnings | — |  |  |  |  | (33.0) |  |  |  |  |  |  | (33.0) |
Current period change | (1.2) |  |  |  |  | — |  |  |  |  |  |  | (1.2) |
September 30, 2021 | $ | 0.6 |  |  |  |  | $ | 171.0 |  |  |  |  |  |  | $ | 171.6 |

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration