Business, Product and Geographical Area Information (Tables)

6 Months Ended

Jun. 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 June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net sales:
Aero/HS products	$	133.9	$	144.6	$	245.6	$	340.6
Packaging		358.8		—		358.8		—
Automotive Extrusions		55.6		16.7		113.2		64.1
GE products		180.9		110.8		331.3		232.5
Other products		11.8		3.6		16.1		7.8
Total net sales	$	741.0	$	275.7	$	1,065.0	$	645.0
Timing of revenue recognition:
Products transferred at a point in time	$	605.7	$	164.7	$	805.9	$	380.3
Products transferred over time		135.3		111.0		259.1		264.7
Total net sales	$	741.0	$	275.7	$	1,065.0	$	645.0

Schedule of Income Taxes Paid by Geographical Area

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

	Quarter Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Income taxes paid:
Domestic	$	1.1	$	0.3	$	1.2	$	0.3
Foreign		0.3		—		0.6		0.1
Total income taxes paid	$	1.4	$	0.3	$	1.8	$	0.4