Business, Product and Geographical Area Information (Tables)

9 Months Ended

Sep. 30, 2021

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,
	2021		2020		2021		2020
Net sales:
Aero/HS products	$	142.0	$	100.9	$	387.6	$	441.5
Packaging		367.3		—		726.1		—
Automotive Extrusions		50.1		46.2		163.3		110.3
GE products		187.1		105.1		518.4		337.6
Other products		4.1		3.5		20.2		11.3
Total net sales	$	750.6	$	255.7	$	1,815.6	$	900.7
Timing of revenue recognition:
Products transferred at a point in time	$	613.6	$	151.8	$	1,419.5	$	532.1
Products transferred over time		137.0		103.9		396.1		368.6
Total net sales	$	750.6	$	255.7	$	1,815.6	$	900.7

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,
	2021		2020		2021		2020
Income taxes paid:
Domestic	$	—	$	0.1	$	1.2	$	0.4
Foreign		0.2		—		0.8		0.1
Total income taxes paid	$	0.2	$	0.1	$	2.0	$	0.5