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

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Schedule of net sales by end market segment applications

Net sales by end market applications and by timing of control transfer for the periods presented were as follows (in millions of dollars):

	Quarter Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Net sales:
Aero/HS products	$	198.9	$	185.7	$	586.8	$	540.9
Automotive Extrusions	47.5		56.1		146.0		183.9
GE products	117.1		133.9		375.3		425.1
Other products	11.4		17.4		37.3		46.6
Total net sales	$	374.9	$	393.1	$	1,145.4	$	1,196.5
Timing of revenue recognition:
Products transferred at a point in time	$	115.9	$	127.8	$	378.7	$	425.2
Products transferred over time	259.0		265.3		766.7		771.3
Total net sales	$	374.9	$	393.1	$	1,145.4	$	1,196.5

Schedule of income taxes paid by geographical area

Geographic information for income taxes paid for the periods presented was as follows (in millions of dollars):

	Quarter Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Income taxes paid:
Domestic	$	0.1	$	0.4	$	2.0	$	1.3
Foreign	0.4		—		1.6		2.0
Total income taxes paid	$	0.5	$	0.4	$	3.6	$	3.3

Schedule of information for contractual delivery of primary aluminum supply from major suppliers

Information about primary aluminum supply from our major suppliers for the periods presented was as follows:

	Quarter Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Percentage of total primary aluminum supply (lbs):
Supply from our top five major suppliers	81	%	83	%	74	%	82	%
Supply from our largest supplier	23	%	33	%	21	%	36	%
Supply from our second and third largest suppliers combined	38	%	36	%	33	%	32	%