v3.23.3

Other Operating Charges, net (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Operating Income (Expense), Net	$ 1.8	$ (0.4)	$ 1.1	$ 2.2	$ 5.7	$ 0.5	$ 2.4	$ 8.5
Operating Expense
Reorganization Items	0.0			0.0		1.5	0.0	1.6
Asset Impairment Charges	0.3		1.1	1.2	4.6		1.4	5.8
Operating Expense \| Mill Closure Costs
Other Expenses	0.0			0.0		0.4	0.0	0.4
Other Income
Other Operating Income	0.5			0.0			0.4	0.0
Director [Member]
Share based compensation expense	$ 1.0	$ (0.2)	$ (0.2)	$ 1.0	$ 1.1	$ (1.4)	$ 0.6	$ 0.7

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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