Business, Product and Geographical Area Information and Concentration of Risk - Net Sales by End Market Segment Applications (Details) (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net sales:
Net sales	$ 1,172.7	$ 1,514.1	$ 1,585.9
Transferred at Point in Time
Net sales:
Net sales	690.9	866.9	912.7
Transferred over Time
Net sales:
Net sales	$ 481.8	$ 647.2	673.2
Previously Reported | Transferred at Point in Time
Net sales:
Net sales			543.0
Previously Reported | Transferred over Time
Net sales:
Net sales			$ 1,042.9