Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Revenue - Disaggregation of Revenue (Details)

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Note 3 - Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Net sales $ 430.3 $ 471.8
Building and Housing [Member]    
Net sales 140.1 157.6
Automotive and Transportation [Member]    
Net sales 74.5 88.9
Munitions [Member]    
Net sales 54.5 46.3
Coinage [Member]    
Net sales 47.3 45.2
Industrial Machinery and Equipment [Member]    
Net sales 36.2 40.9
Electronic/Electrical Components [Member]    
Net sales 32.2 39.1
Product and Service, Other [Member]    
Net sales $ 45.5 $ 53.8