Business, Product and Geographical Area Information and Concentration of Risk (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

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):

	Year Ended December 31,
	2020		2019		2018
Net sales:
Aero/HS products	$	537.9	$	803.2	$	739.4
Automotive Extrusions		161.4		190.5		239.3
GE products		458.8		480.1		546.0
Other products		14.6		40.3		61.2
Total net sales	$	1,172.7	$	1,514.1	$	1,585.9
Timing of revenue recognition:
Products transferred at a point in time	$	690.9	$	866.9	$	912.7	1
Products transferred over time		481.8		647.2		673.2	1
Total net sales	$	1,172.7	$	1,514.1	$	1,585.9

^1. As corrected from $543.0 million of products transferred at a point in time and $1,042.9 million of products transferred over time.

Schedule of Net Sales, Income Taxes Paid, and Long-lived Assets, by Geographical Area

The following table presents geographic information for net sales based on country of origin, income taxes paid and long-lived assets (in millions of dollars):

	Year Ended December 31,
	2020		2019		2018
Net sales to unaffiliated customers:
Domestic	$	1,126.8	$	1,461.4	$	1,509.6
Foreign1		45.9		52.7		76.3
Total net sales	$	1,172.7	$	1,514.1	$	1,585.9
Income taxes paid:
Domestic	$	0.7	$	3.5	$	1.6
Foreign		0.3		2.0		2.0
Total income taxes paid	$	1.0	$	5.5	$	3.6

	As of December 31,
	2020		2019		2018
Long-lived assets:2
Domestic	$	597.5	$	592.9	$	581.7
Foreign1		29.7		29.1		30.1
Total long-lived assets	$	627.2	$	622.0	$	611.8

^1. Foreign reflects our London, Ontario production facility.

^2. Long-lived assets represent Property, plant and equipment, net.

Schedule of Export Sales and Primary Aluminum Supply from Major Suppliers

The following table presents information about export sales and primary aluminum supply from our major suppliers:

	Year Ended December 31,
	2020			2019			2018
Percentage of Net sales:
Export sales		10	%		14	%		15	%
Percentage of total annual primary aluminum supply (lbs):
Supply from our top five major suppliers		72	%		74	%		81	%
Supply from our largest supplier		21	%		22	%		22	%
Supply from our second and third largest suppliers combined		32	%		32	%		38	%