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v3.22.2.2

Retirement Plans and Postretirement Benefits - Narrative (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Pension Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Service Cost | $ 0.5 | $ 0.4 | $ 1.6 | $ 1.4
Interest cost | 2.2 | 2.1 | 6.6 | 6.3
Expected return on plan assets | (2.8) | (2.6) | (8.5) | (7.9)
Defined Benefit Plan, Amortization of Gain (Loss) | 1.5 | 2.5 | 4.6 | 7.7
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | 1.5 | 2.4 | 4.4 | 7.4
Other Postretirement Benefits Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Service Cost | 0.1 | 0.2 | 0.3 | 0.3
Interest cost | 0.5 | 0.6 | 1.5 | 1.5
Defined Benefit Plan, Amortization of Gain (Loss) | 0.0 | 0.2 | 0.0 | 0.2
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | 0.6 | 1.0 | 1.8 | 2.0
Cost of Sales [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax | 0.5 | 0.6 | 1.6 | 1.5
Selling, General and Administrative Expenses [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax | $ 0.1 | $ 0.1 | $ 0.3 | $ 0.2

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + 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/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -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 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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