Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2021

Revenue From Contract With Customer [Abstract]

Disaggregation of Net Sales by Place of Manufacture and to Location of Customer

The following table disaggregates our net sales by place of manufacture (point of origin) and to the location of the customer (point of destination), which are the categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.

	Three months ended
	March 31,
	2020			2021
	(In millions)
Net sales - point of origin:
United States	$	237.0		$	253.9
Germany		229.1			231.2
Canada		67.7			97.2
Belgium		66.1			66.5
Norway		54.3			71.0
Eliminations		(233.2	)		(254.8	)
Total	$	421.0		$	465.0
Net sales - point of destination:
Europe	$	214.5		$	227.3
North America		132.3			145.3
Other		74.2			92.4
Total	$	421.0		$	465.0