Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2018

Revenue From Contract With Customer [Abstract]

Geographic Disaggregation of Net Sales

The tables below provides a geographic disaggregation of net sales for the three months ended March 31, 2018 and 2017.  The Company’s business segmentation by geographic region most effectively captures the nature and economic characteristics of the Company’s revenue streams impacted by economic factors.  This regional data is the predominant information used by senior management to assess the financial performance of operating segments and make resource allocation decisions.

	For the Three Months Ended March 31, 2018
(In thousands)
	Surfactants		Polymers		Specialty		Total
Geographic Market
North America	$	220,405	$	73,474	$	14,814	$	308,693
Europe		78,371		41,784		3,648		123,803
Latin America		41,688		827		—		42,515
Asia		18,476		5,848		—		24,324
Total	$	358,940	$	121,933	$	18,462	$	499,335

	For the Three Months Ended March 31, 2017
(In thousands)
	Surfactants		Polymers		Specialty		Total
Geographic Market
North America	$	198,243	$	78,364	$	14,935	$	291,542
Europe		63,423		42,403		4,121		109,947
Latin America		43,505		1,298		—		44,803
Asia		17,432		4,545		—		21,977
Total	$	322,603	$	126,610	$	19,056	$	468,269