XML 61 R51.htm IDEA: XBRL DOCUMENT v3.22.2.2
Discontinued Operations - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 25, 2022
Sep. 26, 2021
Sep. 25, 2022
Sep. 26, 2021
Dec. 31, 2021
Mar. 28, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
(Loss) / gain on disposition of discontinued operations, net of tax $ 0.0 $ (0.5) $ 0.0 $ 6.6    
Held-for-sale | Building | Elektron            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Amount of property disposed $ 1.2   $ 1.2   $ 3.7  
Superform Aluminum Superplastic | Discontinued Operations, Held-for-sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Working capital adjustment         0.8  
(Loss) / gain on disposition of discontinued operations, net of tax   (0.1)     6.6  
Superform Aluminum Superplastic | Discontinued Operations, Held-for-sale | U.S.            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Consideration of disposal         $ 20.2 $ 21.0
Graham | Discontinued Operations, Held-for-sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
(Loss) / gain on disposition of discontinued operations, net of tax   $ (0.5)