Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue From Contract With Customer [Abstract]

Schedule of Disaggregates of Net Sales

The following table disaggregates the net sales of our Chemicals Segment the categories that depict how the nature, amount timing and uncertainty of revenue and cash flows are affected by economic factors (as required by ASC 606).

	Three months ended March 31,
		2017			2018
	(In millions)
Net sales – point of origin:
Germany	$	183.6		$	234.5
United States		205.7			196.8
Canada		77.9			71.6
Belgium		58.1			69.7
Norway		47.3			53.1
Eliminations		(202.8	)		(195.3	)
Total	$	369.8		$	430.4
Net sales – point of destination:
Europe	$	179.7		$	233.9
North America		124.0			127.0
Other		66.1			69.5
	$	369.8		$	430.4

The following table disaggregates the net sales of our Component Products and Real Estate Management and Development Segments by major product line.

	Three months ended March 31,
		2017		2018
	(In millions)
Component Products:
Net sales:
Security products	$	26.0	$	24.1
Marine components		3.9		4.3
	$	29.9	$	28.4

Real Estate Management and Development:
Net sales:
Land sales	$	3.7	$	5.8
Water delivery		1.3		.9
Utility and other		.6		.5
	$	5.6	$	7.2