Business, Product and Geographical Area Information (Tables)

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

Schedule of Net Sales by End Market Segment Applications

The following table presents Net sales by end market applications and by timing of control transfer (in millions of dollars):

	Quarter Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Net sales:
Aero/HS products	$	223.3	$	140.8	$	662.4	$	492.8
Packaging		312.2		341.5		1,021.1		1,240.2
GE products		143.6		200.3		465.1		699.2
Automotive Extrusions		60.1		60.6		199.3		196.0
Other products		4.4		5.7		17.4		23.7
Total net sales	$	743.6	$	748.9	$	2,365.3	$	2,651.9
Timing of revenue recognition:
Products transferred at a point in time	$	595.7	$	630.2	$	1,843.1	$	2,165.1
Products transferred over time		147.9		118.7		522.2		486.8
Total net sales	$	743.6	$	748.9	$	2,365.3	$	2,651.9

Schedule of Income Taxes Paid by Geographical Area

The following table presents geographic information for income taxes paid (in millions of dollars):

	Quarter Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Income taxes paid:
Domestic	$	—	$	0.3	$	0.3	$	2.7
Foreign		—		1.6		0.2		2.6
Total income taxes paid	$	—	$	1.9	$	0.5	$	5.3