Accumulated Other Comprehensive Income (Loss) - Reclassification Adjustments (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Miscellaneous gain, net	$ 1.0	$ 2.6
Net actuarial gain (loss) amortized, tax	(2.1)	0.5
Reclassification \| Net prior service benefit
Miscellaneous gain, net	$ 5.0	$ 1.3

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

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

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