Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss arising from remeasurement during the period, tax	$ 2.2		$ 1.3
Amortization of prior service benefits included in net income, tax	(0.1)	$ (0.1)	(0.2)	$ (0.2)
Amortization of net actuarial gain included in net income, tax	(0.2)	$ (0.2)	(0.7)	$ (0.8)
Reclassification adjustment for pension settlement benefits included in net income, tax	$ (0.6)		$ (0.7)

Amount of tax expense (benefit) for increase (decrease) to other comprehensive income from pension settlement charges related to a defined benefit plan.

No definition available.

+ Details

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- Definition

Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-SubTopic 10
-Topic 220
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-12

+ Details

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- Definition

Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

+ References

+ Details

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- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

+ References

+ Details

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- References

No definition available.

+ Details

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