Segment Reporting Net Sales by Product Group Table (Tables)

3 Months Ended

Mar. 31, 2018

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]

Net Sales by Product Group
	Three Months Ended March 31,
(In thousands)	2018		2017(c)
PE Films:
Personal care materials	$	61,644	$	61,299
Surface protection films	29,815		23,441
LED lighting products & other films	1,790		1,672
Subtotal	93,249		86,412
Flexible Packaging Films	28,437		26,710
Aluminum Extrusions:
Nonresidential building & construction	65,280		52,210
Consumer durables	15,189		12,097
Distribution	10,971		6,334
Automotive	9,673		10,174
Residential building & construction	9,601		7,272
Machinery & equipment	9,094		7,205
Electrical	8,427		4,306
Subtotal	128,235		99,598
Total	$	249,921	$	212,720