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Discontinued Operations - Assets and Liabilities (Details) - USD ($) $ in Millions	Jul. 02, 2023	Dec. 31, 2022
Held-for-sale assets
Current assets	$ 7.8	$ 9.3
Held-for-sale liabilities
Held-for-sale liabilities	3.5	5.0
Discontinued operations | Superform Aluminum Superplastic
Held-for-sale assets
Inventory	2.6	2.7
Accounts and other receivables	1.5	2.7
Current assets	4.1	5.4
Right-of-use-assets	2.5	2.7
Held-for-sale assets	6.6	8.1
Held-for-sale liabilities
Accounts payable	0.5	0.8
Accrued liabilities	0.3	0.2
Other liabilities	0.0	1.0
Operating lease liability	2.7	3.0
Held-for-sale liabilities	$ 3.5	$ 5.0

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