XML 29 R19.htm IDEA: XBRL DOCUMENT
v3.21.2

PENSION AND POST-RETIREMENT PLANS | 9 Months Ended
--- | ---
Sep. 30, 2021
PENSION AND POST-RETIREMENT PLANS |
PENSION AND POST-RETIREMENT PLANS | 12. PENSION AND POST-RETIREMENT PLANS ​ The Company’s pension and post-retirement plans are described in Note 11 to the Consolidated Financial Statements included in Part II, Item 8 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Components of net periodic benefit cost and other amounts recognized in Other Comprehensive Income (Loss) for the qualified pension plans and the post-retirement benefit plans for the three and nine months ended September 30, 2021 and 2020 consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | Post-retirement Benefits
​ | ​ | Three Months Ended September 30, | ​ | Three Months Ended September 30,
(In millions) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Components of net periodic benefit cost (benefit): | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Service cost | ​ | $ | 1.3 | ​ | $ | 1.3 | ​ | $ | 0.2 | ​ | $ | 0.1
Interest cost | ​ |  | 1.4 | ​ |  | 2.1 | ​ |  | 0.1 | ​ |  | 0.2
Expected return on plan assets | ​ |  | (3.5) | ​ |  | (3.9) | ​ |  | — | ​ |  | —
Amortization of net loss | ​ |  | 1.3 | ​ |  | 0.5 | ​ |  | 0.1 | ​ |  | 0.1
Amortization of prior service credit | ​ |  | (0.6) | ​ |  | (0.6) | ​ |  | (0.9) | ​ |  | (1.0)
Net periodic benefit cost (benefit) | ​ | $ | (0.1) | ​ | $ | (0.6) | ​ | $ | (0.5) | ​ | $ | (0.6)
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Pension Benefits | ​ | Post-retirement Benefits
​ | ​ | Nine Months Ended September 30, | ​ | Nine Months Ended September 30,
(In millions) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Components of net periodic benefit cost (benefit): | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Service cost | ​ | $ | 3.6 | ​ | $ | 3.8 | ​ | $ | 0.5 | ​ | $ | 0.4
Interest cost | ​ |  | 4.6 | ​ |  | 5.9 | ​ |  | 0.5 | ​ |  | 0.6
Expected return on plan assets | ​ |  | (10.8) | ​ |  | (10.4) | ​ |  | — | ​ |  | —
Amortization of net loss | ​ |  | 3.8 | ​ |  | 3.4 | ​ |  | 0.7 | ​ |  | 0.4
Amortization of prior service credit | ​ |  | (1.7) | ​ |  | (1.8) | ​ |  | (2.7) | ​ |  | (2.8)
Net periodic benefit cost (benefit) | ​ | $ | (0.5) | ​ | $ | 0.9 | ​ | $ | (1.0) | ​ | $ | (1.4)
​

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

X
- Definition The entire disclosure for retirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section S99 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (o) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (p) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(03) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (q) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration